input: Text: OUT OF THE IRON WOMB! By POUL ANDERSON Behind a pale Venusian mask lay hidden the arch-humanist, the anti-tech killer... one of those who needlessly had strewn Malone blood across the heavens from Saturn to the sun. Now—on distant Trojan asteroids—the rendezvous for death was plainly marked. The most dangerous is not the outlawed murderer, who only slays men, but the rebellious philosopher: for he destroys worlds. Darkness and the chill glitter of stars. Bo Jonsson crouched on a whirling speck of stone and waited for the man who was coming to kill him. There was no horizon. The flying mountain on which he stood was too small. At his back rose a cliff of jagged rock, losing its own blackness in the loom of shadows; its teeth ate raggedly across the Milky Way. Before him, a tumbled igneous wilderness slanted crazily off, with one long thin crag sticking into the sky like a grotesque bowsprit. There was no sound except the thudding of his own heart, the harsh rasp of his own breath, locked inside the stinking metal skin of his suit. Otherwise... no air, no heat, no water or life or work of man, only a granite nakedness spinning through space out beyond Mars. Stooping, awkward in the clumsy armor, he put the transparent plastic of his helmet to the ground. Its cold bit at him even through the insulating material. He might be able to hear the footsteps of his murderer conducted through the ground.
  Question: How does Lundgard end up getting left behind and needing a companion back to Earth?
  
   (A) He was waiting behind to try to kill Johnny.
   (B) He basically "took one for the team" for his last crew, as he made a mistake, causing them to need to leave one person behind.  He volunteered to stay.
   (C) He is a criminal on the run, and he had not found a way to escape to Earth yet.
   (D) He stayed behind for a woman, but their relationship dissolved.
  Answer:
output: He basically "took one for the team" for his last crew, as he made a mistake, causing them to need to leave one person behind.  He volunteered to stay.