Which of these is both an endocrine gland and the center for a variety of behaviors related to survival?

If I was interested in comparing two groups before and after an intervention, I would use a:

A. Independent samples t-test B. Correlated samples t-test C. t-test for correlations D. All of the above

Darrius is a college student,

who enjoys going to wild, "uninhibited" parties and getting high on marijuana. He also enjoys riding his motorcycle fast and wants to be an EMT after college. Darrius would most likely be described as a. having a need for power. b. intrinsically motivated. c. high in sensation seeking. d. self-actualized.