Select the correct answer. Which describes a significant problem in sentence variation in the excerpt below?
Flying is hard to do. After all, we are human. Humans don't have wings. Why try to fly? I think I know. To fly is a human challenge.
ОА.
Sentences begin about the same way.
ОВ.
Sentence length is about same.
O c.
There are no clauses.
OD.
Few sentences are questions.