Agood way to check the effectiveness of a paragraph is to
a. read it in reverse, beginning with the last sentence and ending with the first.
b. write a short essay based on the paragraph to see if enough information was presented.
c. create a title for each paragraph as if it were the main essay.
d. write three alternate paragraphs and then choose the best one.

Explanation:

This could help because a paragraph is about a specific idea that support the main one. So, giving little titles to each paragraph will help you to see if each paragraph doesn't have too many ideas, because this can confuse readers.

Just consider that a paragraph is a unit that discuss a single idea.

the correct answer is   d. a picture depicting people applauding a country's leader.