Adjective clauses usually start with words like who, which,where and why.I think the sentence you are looking for is A. Adjective clause being "which many people love".
A poet can use imagery to help establish the setting of the poem and in some cases the mood.
I.e. If you were in a dark mansion the mood would be more melancholy.
Answer:
B. If any of you are Caesar's friend, know that I loved him just as much as you did.