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

<passage>:
Doctor Universe under the nom de plume of Annabella C. Flowers, had stumbled onto a murderous plot more hair-raising than any she had ever concocted. And the danger from the villain of the piece didn't worry her—I was the guy he was shooting at. [Transcriber's Note: This etext was produced from "Hold it, Billy-boy." Laughingly she threw up both hands. "Sure, I knew this place had some antiquated laws. Pure fiddle-faddle, that's what in the name of science fiction than anyone alive. But the public loved it. They ate up her stories, and they clamored for more. Her annual income totaled into six figures, and her publishers sat back and massaged their digits, watching their earnings mount. I grinned. "All complete, I'll bet, with threats against the universe "What else is there in science fiction?" she demanded. "You can't have ONE NIGHT ONLY DOCTOR UNIVERSE AND HIS NINE GENIUSES myself. I am Doctor Universe, and these are my nine experts." audience. When it had subsided, the man continued: "As most of you are familiar with our program, it will be unnecessary on the dais. The Doctor's program began. The operator of the Earth visi twisted his dials and nodded. Blue light flickered on the pantascope panel to coalesce slowly into the face of a red-haired man. Sharp and dear his voice echoed through the theater: " Doctor Universe nodded and turned to Grannie Annie who had raised her the visi sets. Isolated miners on Jupiter, dancers in swank Plutonian cafes strove to stump the experts. With Doctor Universe offering bantering side play, the experts gave their answers. When they failed, or when the Truthicator flashed a red light, he announced the name of the winner. It grew a little tiresome after a while and I wondered why Grannie had brought me here. And then I began to notice things. The audience in the Satellite seemed to have lost much of its original fervor. They applauded as before but they did so only at the signal of Doctor Universe. The spell created by the man was complete. Pompous and erect, he strode back and forth across the stage like a general surveying his army. His black eyes gleamed, and his thin lips were turned in a smile of satisfaction. "The I.P. men aren't strong enough." Varsoom country. To make a long story short, I got him talking about his adventures, and he told me plenty." The old woman paused. "Did you ever hear of the Green Flames?" she asked abruptly. I shook my head. "Some new kind of ..." "It's not a new kind of anything. The Green Flame is a radio-active rock once found on Mercury. The Alpha electromagnetic pulsations, but they are also a strange combination of "When any form of life is exposed to these Gamma rays from the Green Flame rock, they produce in the creature's brain a certain lassitude and lack of energy. As the period of exposure increases, this condition develops into a sense of impotence and a desire for leadership or guidance. Occasionally, as with the weak-willed, there is a spirit of intolerance. The Green Flames might be said to be an inorganic opiate, a thousand times more subtle and more powerful than any known drug." I was sitting up now, hanging on to the woman's every word. enough to endanger all civilized life. "The archives tell us that one of the first acts of the overthrowing government was to cast out all Green Flames, two of which Vennox had ordered must be kept in each household. The effect on the people was immediate. Representative government, individual enterprise, freedom I said, "So what?" "So everything, Billy-boy. Do you realize what such a thing would mean if it were true? Green Flames were supposedly destroyed on all planets after the Vennox regime crashed. If a quantity of the rock were in existence, and it fell into the wrong hands, there'd be trouble. your thief ... Doctor Universe?" representation be abolished on Jupiter. The time is ripe for a military dictator to step in. "And you can lay it all to the Green Flames. It seems incredible that a single shipload of the ore could effect such a wide ranged area, but in my opinion someone has found a means of making that quantity a thousand times more potent and is transmiting it en masse ." Ezra Karn so much the better. If we don't, we follow his directions to the lost space ship. Our job is to find that ore and destroy it. You see, I'm positive the Green Flames have never been removed from the ship." Sleep had never bothered me, yet that night I lay awake for hours The thing in the darkness turned like a cam on a rod and drove at us again. This time the old woman's heat gun clicked, and a tracery of purple flame shot outward. A horrible soul-chilling scream rent the air. A moment later something huge and heavy scrabbled across the ground and shot aloft. and follows with a relentless purpose." "Then that would mean...?" "That it was sent by our enemy, the same enemy that shot at us in the being watched. From now on it's the survival of the fittest." hand into one of those yellow streaks, he would have been devoured in a matter of seconds. Grannie Annie came to the point abruptly. When she had explained the object of our trip, the prospector became thoughtful. "Green Flames, eh?" he repeated slowly. "Well yes, I suppose I could find that space ship again. That is, if I wanted to." "What do you mean?" Grannie paused in the act of rolling herself a Earthmen. Strictly speaking, they're no more than a form of energy." because I was alone, and they didn't notice me, and Darthier escaped because he made 'em laugh." "Laugh?" A scowl crossed Grannie's face. "That's right," Karn said. "The Varsoom have a strange nervous reaction that's manifested by laughing. But just what it is that makes them laugh, I don't know." "The Doctor Universe program," he said. "I ain't missed one in months. flipped a stud, twisted a dial and a moment later was leaning back in a chair, listening with avid interest. It was the same show I had witnessed back in Swamp City. Once again I heard questions filter in from the far outposts of the System. Once again I saw the commanding figure of the quiz master as he strode back and forth across the stage. And as I sat there, looking into the visi screen, a curious numbing drowsiness seemed to steal over me and lead It was Karn who first sighted the ship. Striding in the lead, he suddenly halted at the top of a hill and leveled his arm before him. There it lay, a huge cigar-shaped vessel of blackened looked, we could see liquid pulse in glass tubes, indicator needles swing slowly to and fro. Grannie nodded. "Some kind of a broadcasting unit. The Green Flames in the lower hold are probably exposed to a tholpane plate and their radiations stepped up by an electro-phosicalic process." Karn raised the butt of his pistol and brought it crashing against the atomic blast will shatter that wall. It explains why there are no guards here. The mechanism is entirely self-operating. Let's see if the Green Flames are more accessible." In the lower hold disappointment again confronted us. Visible in the feeble shafts of daylight that filtered through cracks in the vessel's hull were tiers of rectangular ingots of green iridescent ore. Suspended by insulators from the ceiling over them was a thick metal

<question>:
What is true about Doctor Universe?

<options>:
A His audience reacts so well to him because much of the population is under the influence of Green Flame.
B He knows about the whereabouts of Green Flame and is hiding it from Grannie Annie.
C There is nothing of note to him. He is just a popular TV personaility.
D He is using Green Flame himsel to influence his audience and force them to watch. He is the one who stole it.

<answer>:

A