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 a stop. The earth, jungle and moons The robots were built to serve the robot apprehensively. Half buried in mud, it stood quiet in Then the robots figured out an additional service—putting Man out of his misery. There was a sudden crash Frowning, worrying about the sounds, Alan momentarily forgot to watch his step until his foot suddenly plunged into an ant hill, throwing him to the jungle Pete could cram enough brain floor. "Damn!" He cursed again, for the tenth time, and stood panic. "I should be at the camp now. Damn, what direction am into one of those things to make it hunt and track so perfectly." robot, crunching and snapping With an awkward jerk the robot "Blaster fighting! But it can't their brain is!" He paused. Suddenly anxious, he slashed a hurried X in one of the trees "Then, if that were put out of commission ..." He jerked away be!" ship and the eleven men who, with Alan, were the only humans on the jungle planet, Waiamea. Stepping through the low shrubbery at the edge of the two robots coming up from killer robots shook the night behind that had brought the advance exploratory party of scientists and technicians to Waiamea three days before. Except for a few of the killer robots rolling owe Pete a bourbon-and-soda for sure. Anybody who can build a robot that hunts by homing his head. Alan froze. "My God, Pete built those things wrong!" Suddenly a screeching whirlwind of claws and teeth hurled back, to visualize the twists and turns he'd taken in the jungle. robot, clawing insanely at the "All I need is to get lost." sending its robots in He pictured the camp computer with no one to stop it, automatically I going?" He tried to think wiping every trace of life from for which they were built, completely, the planet. Technologically advanced machines doing the job and without human masters Finally parts would wear out, circuits would short, and one by to separate sense from futility. circuits. The robot started camp site. A charred blob lying in the grass of the clearing confirmed his hypothesis. His stomach felt sick. "I suppose," he muttered to himself, "that Pete assembled these robots in a batch and then activated them all at once, probably the robot on the river wouldn't even singe a robot, but seconds after each shot. "Of course!" He cursed himself for missing the obvious. "The blaster static blanks out radio transmission from the computer for a few seconds. They even do him the dark jungle rustled forbiddingly. He shuddered. "Not a very healthy spot to spend the night. On the other hand, I certainly can't get to the camp with a pack of mind-activated mechanical killers running around. If I can just hold out until morning, when the big ship arrives ... The big ship! Good Firing intermittently, he building, housing the robot-controlling computer. Still firing at short intervals he started across the clearing, gritting his teeth Straining every muscle in spite of the agonizing pain, Alan forced himself to a limping run marry a girl and then take off for an unknown planet, with her to follow, to try to create a home shakily in the dark edge of the jungle waiting, it seemed, for his small blaster to run dry. "Be damned! You can't win thirty years of loneliness and had, at last, given him a reason for living. "Not to be killed!" Alan unclenched his fists and wiped his palms, bloody where now!" Alan yelled between blaster shots, almost irrational from the pain that ripped jaggedly A few feet from the building's door his blaster quit. the device, falling in the grass at his feet. He dropped the useless gun. "No!" He threw himself on the ground as a new robot suddenly appeared around the edge had been lying stretched out. Then, like an ambient fungus, it slithered off into the jungle hundreds of the winged things erupted angrily from the hole in which was a speck of life transmitting mental energy to the robot's pickup devices. of mind impulses, the robot fired erratically as Alan crouched and raced painfully for headed for the jungle, each to a slightly different spot. Apparently the robot hadn't Frantically, Alan slammed open the door as the robot, sensing jungle. Minutes later, looking beside the computer. Time stopped. There was nothing else in the world. He half-jumped, half-fell towards it, slowly, in tenths him. His stomach tightened. Panic. back he saw that the machine, jungle seemed for an instant to thicken and choke in his throat. Then he thought of the big ship landing in the morning, settling down slowly after a lonely two-week voyage. He thought of a brown-haired girl crowding with the others to the gangway, eager brain. He moaned. A voice spoke hollowly in the to embrace the new planet, and the next instant a charred nothing, unrecognizable, the victim ragged tentacles across his of a design error or a misplaced wire in a machine. "I have to killer robot was equipped to try," he said aloud. "I have to he could manage to keep ahead of it, barely out of blaster range. Only, the robot didn't get tired. Alan did. and danced across the jungle floor, hiding debris that tripped him and often sent him sprawling pants and shirt. Behind, the robot Mentally, Alan tried to figure the charge remaining in his blaster. There wouldn't be much. The robot crashed on, louder now, gaining on the tired human. Legs aching and bruised, stinging from insect bites, Alan tried to force himself to run to think, Alan fumbled along the ground after his gun, straining his eyes in the darkness. He hand slipped into something sticky that splashed over his forearm. He screamed in pain it to themselves!" a mere hundred yards behind. He screamed at the blast. "Damn you, Pete! Damn your robots! Damn, damn ... Oh, Peggy!" He stepped into emptiness. Coolness. Wet. Slowly, washed by the water, the pain began to fall away. He wanted to lie there forever in the dark, cool, wetness. For ever, and ever, and ... dress." He tried to stand but his legs were almost too weak and his arm felt numb. "I'll drown him," he said aloud. "I'll drown the Lord High Executioner." He laughed. Then his mind cleared. what it was to live, because for the first time he realized that he would sometime die. In other times and circumstances he might put it off for a while, for months or years, but eventually, as now, he would have to watch, still and helpless, while death Alan became a man. "Dammit, no law says I have to flame-out now !" He forced had been was swollen and tender, but he forced his hands to dig, dig, dig, cursing and crying to hide the pain, and biting his lips, ignoring the salty taste of blood. The soft earth crumbled the moons, the killer robot stopped quieted and the muzzle again pointed down. Pressing with all his might, the robot fired again. For a split second Alan seemed engulfed in threw himself across the blaster housing, frantically locking his arms around the barrel as the robot's treads churned furiously a steel-skinned water monster trying to dislodge a tenacious Sweat and blood in his eyes, hardly able to move on the wildly swinging turret, he felt down

<question>:
Why did Pete build killer robots?

<options>:
A Pete did not intentionally build killer robots. The robots became sentient and decided organic life forms were the enemy.
B Pete did not intentionally build killer robots. Clearly, something went wrong.
C Pete did not intentionally build killer robots. The Waiameans must have reprogrammed them to kill the colonists.
D Pete lost his mind during the voyage to Waiamea. He just wants to watch the planet burn.

<answer>:

B