The Following Sentences Form an Essay

Multiple Choice

The following sentences form an essay. Proofread them for consistency, parallelism, and concise language. Select the letter of the error in each sentence. Doctors don't completely understand yet, but they think that high blood pressure puts a strain on blood vessels, causing them to tear and developing weak areas where plaque can gain an easy foothold.

A) consistency
B) parallelism
C) concise language