Answer:
Both choices are correct
Explanation:
In the play Oedipus is searching for Laius' murderer because an oracle tells him only when the murderer is punished will a plague end, but at the end we learn that he is the murderer. So that makes him a criminal and a detective.
Sentence 4 because it summarizes the paragraph but does not give an opinion like answer but used factual evidence to support it.