D. You want it to be eye catching to the audience, but you also want it to be relevant to the subject you're talking about. A long title may bore the audience.
The correct answer here is c) to the extreme. An absolute phrase is a
phrase which includes a subject, and whereas the other possible answers
all include subjects (eyes, hands, heart) the same cannot be said of 'to
the extreme' which could be described more as a commonplace saying or
cliche rather than an absolute phrase.
the correct conjunction is "which"