A . Because We Have Astronauts So Human Have Already Accomplished That
c. she sometimes disobeys her parents' rules
It helps develop the theme because with the teacher being strict Kevin no longer tries to get answers from his father and listens to the teacher and Kevin learns from it.
It is B, adding detail to verbs.
A is describing adjectives
C is not right, prpnopuns do not replace nouns
D, pronouns and verbs are two different things why would one replace the other?