Which excerpt from the man who went to the far side of the moon best shows that michael collins is brave?

a). "surrounding him on the walls of the capsule are more than 700 switches, levers, alarm buttons, gauges, warning lights, and computer keys."
b). "the only thing between him and outer space is some insulation and a thin sheet of metal."
c). "he thinks about his family. he says his children's names aloud, slowly. kate. ann. michael."
d). "he has brought a camera. he takes pictures of his stubbled face."