Which of the following statement is correct about topic sentence?

A.Topic sentences control the scope of a parargraph, so do not make them too broad or too general in nature.

B.Topic sentence control the scope of a paragraph, so do not make them so narrow that you will not have anything much to discuss in the paragraph.

C.It is most important to write clear topic sentences that direct both you and your reader through the writing.

D.None of them.

正确答案：Topic sentences control the scope of a parargraph, so do not make them too broad or too general in nature.；Topic sentence control the scope of a paragraph, so do not make them so narrow that you will not have anything much to discuss in the paragraph.；It is most important to write clear topic sentences that direct both you and your reader through the writing.