A because private must be built
Answer:
A. A Refrain
Explanation:
A refrain is the repetition of a line or group of lines throughout a poem.
Oedipus Rex, also known by its Greek title, Oedipus Tyrannus, or Oedipus the King, is an Athenian tragedy by Sophocles that was first performed around 429 BC. Originally, to the ancient Greeks, the title was simply Oedipus, as it is referred to by Aristotle