Supporting evidence should be presented in

Athe introduction, right after the thesis statement.
Bthe body, right after subtopic statements.
Cthe conclusion, to give weight to closing arguments.
Dall sections of the essay, so that the thesis is supported throughout.

Verified Answer :

The correct answer is B. The body, right after subtopic statements.

It's not everywhere because you should not provide new supporting evidence in the conclusion. Conclusions should restate and paraphrase what was previously mentioned. The introduction is not it as well because there is usually nothing after the thesis statement as it has a tendency to be the final sentence in the introduction paragraph.