Which of the following statement is NOT true about basic steps in writing an essay of classification or division？

A.Writers need to choose a subject to be classified or divided before starting their essays.

B.Writers should include as many categories as possible in their essays.

C.Writers should decide their own principles of classification and division.

D.When listing their categories, writers are supposed to provide examples of each category.

正确答案：Writers should include as many categories as possible in their essays.