Michael is writing a paper for psychology. One of his sources is a text in which the following statement appears: When a deeply depressed mood comes on fairly suddenly and either seems to be too severe for the circumstances or exists without any external cause for sadness, it is called major depressive disorder. Which of the following would not be an acceptable way for Michael to use this material in his paper?

a. Put the entire sentence in quotation marks and cite the author and textbook information where he found the quote.

b. Summarize the ideas in the sentence in his own words.

c. Use only part of the information, but make sure he uses his own language.

d. All of the answer choices are correct.