Question

What is a major challenge of current space exploration?

A. developing bigger rockets
B. setting a clear goal for the future
C. sending unmanned probes to other planets
D. securing international cooperation for missions

Answer 1

B) Setting a clear goal for the future.

Step-by-step explanation:

At this point in time, the future of space exploration is unclear. NASA is debating whether we should return to the Moon, or press on to Mars. (although it seems more likely that we will go to Mars some time in the future.)

(I took the quiz, and it was right.)

Answer 2

B. setting a clear goal for the future