<span>the answer is subordinate clause</span>
I would go with the last sentence.
The question is whether those phrases are speaking of the same person :
<span>A. her friend and former room-mate
- this is the same person, if it was two people, it'd be "and her"
B. </span><span>the winner and still champion
-again, the same person, requires singular verb
C.</span><span>The chief and foremost expert
-again, the same person: requires a singular verb and actually has a singular verb, correct answer!
</span>
Um, what do you mean? I think you need more question content so we can answer it!
<span>I believe that the
correct answer is last option. In the short story "Rules of the Game"
written by Amy Tan, the narrator, chess prodigy Waverly Place Jong, engages in an
imaginary chess game with her mother, Lindo Jong. This imaginary chess game represents
her internal struggle – her mother's expectations for her. Waverly wants to
play chess because she enjoys it, but her mother always wants her to do better.</span>
