Choose the answer. Which identifies a fact given in the speech?

A. Its conquest deserves the best of all mankind, and its opportunity for peaceful cooperation may never come again.

B. Within these last 19 months at least 45 satellites have circled the earth.

C. If this capsule history of our progress teaches us anything, it is that man, in his quest for knowledge and progress, is determined and cannot be deterred.

D. The exploration of space will go ahead, whether we join in it or not, and no nation which experts to be the leader of other nations can expect to stay behind in the race for space.