Read the following passage and questions, then choose the right answer from options, the answer should be one of A, B, C, D.

<passage>:
to do it before you have a chance to undo it! It was a good job and Max Alben knew whom he had to thank for it—his outside his powers of comprehension. But Max Alben knew how to run it, and he knew, roughly, what it was supposed to accomplish. He knew also And if that had not been discovered, the ruling powers of Earth, more than a century later, would never have plucked Max Alben out of an obscure civil-service job as a relief guard at the North American Chicken Reservation to his present heroic and remunerative eminence. the half-pail of dried apricots he received each and every payday. No, if his great-grandfather had not demonstrated long ago his unique capacity for remaining conscious during time travel, Max Alben would not now be shifting from foot to foot in a physics laboratory, facing the black market kings of the world and awaiting their final instructions with an uncertain and submissive grin. of their tremendous stature so much as waste a glance on someone like Alben ordinarily, let alone confer a lifetime pension on his wife and five children of a full spoonful each of non-synthetic sugar a day? Even if he didn't come back, his family was provided for like almost no other family on Earth. This was a damn good job and he was lucky. Alben noticed that Abd Sadha had risen from the straight chair at the far side of the room and was approaching him with a sealed metal cylinder in one hand. Alben. "I am sure, young man, that I don't have to go into the details of your much like a small boy after completing a recitation before visiting dignitaries from the Board of Education. "And he pulls the red switch toward him," Gomez, the dandelion-root magnate, reminded him sharply, impatiently. None of the half-dozen men on couches deigned to answer him. And Alben kept his eyes deferentially in their direction, too, as he had throughout this period of last-minute instruction. He knew who ruled his world—these stolid, well-fed men in clean garments with a minimum of patches, and where patches occurred, at least they were the color of the surrounding cloth. Sadha might be Secretary-General of the United Nations, but that was still a civil-service job, only a few social notches higher than a chicken guard. His clothes were fully as ragged, fully as multi-colored, as those that Alben had stepped out of. And the gnawing in his stomach was no doubt almost as great. "You understand, do you not, young man, that if anything goes wrong," Abd Sadha asked, his head nodding tremulously and anticipating the answer, "if anything unexpected, unprepared-for, occurs, you are not to continue with the experiment but return immediately?" "He understands everything he has to understand," Gomez told him. just heard Gomez tell you to get this thing moving, Sadha. And it isn't moving. We're busy men. We've wasted enough time." And if that had not been discovered, the Albins would not have become physicists upon the passage of the United Nations law that everyone on Earth—absolutely without exception—had to choose a branch of research science in which to specialize. In the flabby, careful, life-guarding world the Earth had become, Mac Albin would never have been reluctantly selected by his two co-workers as the one to carry the forbidden banner of dangerous experiment. laboriously working out dreary gene problems instead of embarking on the greatest adventure Man had known to date. Even if he didn't come back, he had at last found a socially useful Albin and Honek watched him stuff several sheets of paper into a small metal box which he closed without locking. sentenced to complete loss of professional status and spend the rest of our lives supervising robot factories." "Oh, it won't be that bad," Albin reassured him absent-mindedly from where he lay contorted inside the time machine. He watched Skeat coming if either of us dropped out of sight, it wouldn't cause nearly as much uproar." "But Bob and you both tried to operate the machine," Albin reminded Albin. "The Security Council is just trying to solve the problem in Albin turned it around curiously. "How?" enough so that they'll get the same idea we did and try to go back to the same point in time to change them." Albin laughed. "That's just looking for trouble." Albin grimaced in annoyance. "I am excited by doing something recognize that simple fact. I know that if anything unexpected pops up, anything we didn't foresee, I'm supposed to come scuttling back and ask for advice." "I hope you do," Bob Skeat sighed. "I hope you do know that. A either." "That I'll promise you," Albin said a trifle disgustedly. "It'll end with neither a bang But.... He stopped and scratched his dirt-matted hair. Wasn't there something he was supposed to do a second before materialization? Yes, that useless old windbag, Sadha, had given him a last instruction. He picked up the sealed metal cylinder, walked to the entrance of the he opened it, hoping to find something valuable. Nothing but a few sheets of paper, Alben noted disappointedly. He began to read them slowly, very slowly, for the manuscript was full of a lot of long and complicated words, like a letter from one bookworm scientist to another. to its dismay that its generative powers had been permanently and fundamentally impaired. was usually the most that could be expected, a two-child parent being quite rare and a three-child parent almost unknown. some form of scientific research to some extent. Since the population was now so limited in proportion to the great resources available, all physical labor had long been done by robots. The government saw to it Max Alben finished the manuscript and sighed. What a wonderful world! What a comfortable place to live! It was odd, Mac Albin reflected, that these temporal journeys, which induced coma in everyone who tried it, only made him feel slightly Experiment. Carefully, carefully, like an obstetrician supervising surgical robots at an unusually difficult birth, he watched the But.... economically lived in comparative comfort. Law and order were had only by those who could afford to pay for them and children of impoverished families were sold on the open market for a bit of food. As the equipment of the remote-control station began to take on a blurred reality all around him, Max Alben felt a bit of fear at what he was doing. The technicians, he remembered, the Secretary-General, even the black market kings, had all warned him not to go ahead with his instructions if anything unusual turned up. That was an awful lot of power to disobey: he knew he should return with this new information and let better minds work on it. They with their easy lives, what did they know what existence had been care of you and that treasured your children. A man like himself, with five had its troubles, but it was a lot nicer place than where he'd come from. He wouldn't return. He'd go through with it. The fear left him and, for the first time in his life, Max Alben felt As the equipment of the remote-control station began to oscillate into reality all around him, Mac Albin felt a bit of shame at what he was doing. He'd promised Bob and Hugo to drop the experiment at any stage But what would they be able to tell him, they with their blissful adjustment to their thoroughly blueprinted lives? They, at least, had been ordered to marry women they could live with he'd drawn a female with whom he was completely incompatible in any but a genetic sense. tired to the tip of his uncalloused fingers, tired to the recesses of his unused muscles. He was tired of having to undertake a simple adventure like a thief in the night. deserved a chance. Albin decided that he was experiencing renunciation and felt proud.

<question>:
What is the relationship like between Sadha and Alben?

<options>:
A Sadha and Alben are both capable of time travel and this time Alben was chosen for the mission which Sadha resented
B Sadha takes orders from Alben under the direction of another council
C Sadha was part of designing and building the time machine with Alben
D Sadha provides orders to Alben, and is under the direction of other men who council him, but their relationship goes no further

<answer>:

D