Question

Paraphrasing is the process of A. comparing and contrasting ideas found in technical writing. B. determining the cause-and-effect relationships found in technical writing. C. defining technical words and phrases found within an informational text. D. restating information in different words than those of the author.

Answer 1

You're answer is D.
Hope this helps :)

Answer 2

Paraphrasing is the process of restating information in different words than those of the author. So the answer to your question would be letter D.  Paraphrasing is use in an academic text in which the researcher needs to rephrase the original text to avoid plagiarism.