D. This sentence uses parallel subjects and verbs.
Explanation:
Parallelism refers to a quality of sentences in which each section of a sentence follows a similar structure. In this example, the sentence places the subject (wind, leaves, birds) before the verbs (blew, shook, flew). Moreover, all the verbs are presented in the simple past. This shows that the sentence employs parallelism, which increases its clarity and readability.
