How is a paragraph expanded into an essay？

A. The topic sentence of the paragraph becomes the thesis statement of the essay.

B.The supporting sentences of the original paragraph expand into three separate body paragraphs in the essay.

C.The concluding sentence is made into a concluding paragraph.

正确答案：The topic sentence of the paragraph becomes the thesis statement of the essay.#The supporting sentences of the original paragraph expand into three separate body paragraphs in the essay.#The concluding sentence is made into a concluding paragraph.