Directions: In the following question there are sentences that form a paragraph. Identify the sentence(s) or part(s) of sentence(s) that is/are correct in terms of grammar and usage (including spelling, punctuation and logical consistency). Then, choose the most appropriate option.

A. The great bulk of the people was B. either having one-time meals or not having at all. C. When he had known what he wanted to know he went home. D. The major areas of medicine in which lasers are effective is in the cutting and closing E. of blood vessels, and in the destruction of tumors