I think the answer is D, all of the above :)
As he converted into Christian beliefs, Augustine was heavily influenced by this philosophy of Plato. Augustine believed that evil was "a privation of good" and that God was not material. The philosophy emphasized on the supernatural entity of The One, or God.
What are the answer choices?
I think that the answer for "site" should be c. location.
“When thinking” is the right answer (the definition of retrospect is “a survey or review of a past course of events or period of time”. So “when thinking “ is most likely the right answer.