Freytag’s work expanded on ideas from which Greek writer? Sophocles
Aristotle
Euripides
Aeschylus

Correct answer is Aristotle.

Explanation:

Among the mentioned writers Aristotle is the one that was in some way a role model to Freytag. It is interesting that all other mentioned writers were writing tragedies, but it is Aristotle who influenced Freytag.

Aristotle explained his attitude in his work Poetics, while Freytag developed his ideas in his analysis of tragedy.

b i think if not it should be a pretty sure but not