The body of an essay is the most informative and integral part of a composition. Please select from the following statements on the body of an essay the wrong one. 
A、There are three fundamental elements of a body paragraph: a topic sentence, supporting sentences and a concluding sentence.
B、The body part should be one-paragraph long as the introduction and conclusion part.
C、After having chosen/analyzed a topic and written the thesis statement, it is best to begin writing the body because the introduction needs to reflect the body.