单选题 Gehman believed that had its administrators known the damage to Columbia, NASA would______.

A、 have managed the rescue of the astronauts orbiting the earth
B、 still have been unable to conceive of any way to save the astronauts
C、 have attempted to help the astronauts out of danger unwillingly
D、 have succeeded in repairing the damaged left wing of the shuttle

【正确答案】 A

【答案解析】这是一道细节题。根据第二段可知答案应为A。