What aspect of Robert Frost's poetry is traditional A) His word choice B) His cynicism C) His structure D) His subject matter

From my understanding, the answer to this multichoice is A) His structure

C) His structure

Explanation:

Robert Frost is an American poet who initially became famous in England. Frost most often wrote about rural life in New England, and his colloquial speech, as well as his mundane scenes, often contrasted with his complex and philosophical themes. Although Frost was innovative in many ways, he was also traditional, particularly when it came to the structure of his poems.