Which practice was typical of Robert Frost?

A) using experimental techniques

B) using traditional forms

C) writing in formal language

D) writing in free verse

(Not A nor D)

The correct answer is B. using traditional forms.

He was a poet who liked to stick to the traditional forms of poetry, and didn't really use the forms which were popular at his time, such as free verse and other experimental techniques. His used simple, everyday language when he wanted to convey his deep messages.

The correct answer is B. using traditional forms.