B) The development of the first home computer.
Answer:
If Gatsby represents one part of Fitzgerald's personality, the flashy celebrity who pursued and glorified wealth in order to impress the woman he loved, then Nick represents another part: the quiet, reflective Midwesterner adrift in the lurid East. ... Gatsby, in particular, comes to trust him and treat him as a confidant.
Explanation:
The main clause is "Chris's chief interest was tennis".
The subordinate clause is "Which he was just learning to play" and it is an adjective clause because it describes what the "tennis" was like. Tennis is an object and this subordinate clause further describes that it is the tennis that he was trying to learn.
I forcefully divulged myself in their lives.