I believe the answer is D: It revolves around the family unit.
Answer:
The scientists and educators in the Mojave studied microbial life in the desert and the similarities of geologic formations to those of the moon and Mars. Teams also used a hot air balloon to test new remote-sensing equipment to detect subterranean formations. So they are going to keep furthering things like this.
Explanation:
The Iranian army was,preparing to invade Iraq
