Quotations are used to:

A. Make the writing more interesting
B. Provide academic credibility
C. Offer expert proof
D. Lend a stronger sense of voice

answer- d

It does give the character a stronger sense of voice

I would say D because it involves more peoples' voices in the text, but for this question, I think it could be any. You'll get it right as long as you provide an appropriate, sensible, good reason why.

Explanation:

the servant does not kill the child oedipus as he was ordered to do because "he pitied the child" based on the oedipus rex story. the servant was ordered to kill the child because of the prophecy that predicted king laius' death. the king already had attempted to hurt oedipus by piercing oedipus's ankle. however, the servant did not finish the job and he rather saved the baby oedipus.

explanation:

the answer is b. the tomb is underground and dark, and its opening is covered by a heavy grate.