Question: For the following, which type of t-test is required? A. Studying the effects of a memory drug on Alzheimer’s patients, test a group of patients before and after administration of the drug. B. Studying whether men and women rate the persuasiveness of an argument delivery by a female speaker differently. C. The study described in part (b), but with the added requirement that for each man of a particular age there is a woman of the same age.