We should help . . . . . . . . poor. A. a B. an C. the D. no article

The correct answer is D. no article.

The word “poor” is an adjective, not a noun. It describes the person or people being referred to, not the person or people themselves. Therefore, no article is needed.

If we were to use an article, it would change the meaning of the sentence. For example, “We should help the poor” means that we should help all poor people. “We should help a poor person” means that we should help one specific poor person.

In this case, the speaker is not referring to a specific poor person, but rather to all poor people in general. Therefore, no article is needed.