Sam is trying to learn about sexual hormones based on the body due to a rush in blood cells. He wants to learn the most he can to educate others about his research. Based on the topic, which will be the most reliable source for Sam to begin his research. A. A book about planning sexual activities
B. Scientific research on the body
C. The news paper
D. An age restricted site showing nudity

B. Scientific research on the body

Explanation:

B is the most plausible answer because option A and D will not answer your research question about sexual hormones (from a scientific perspective) and option C will have information which will not help you make conclusions since newspaper take their information from other sources and sometimes leave out chunk of data or information to fit it in one page.

Therefore, best option is B to look into scientific research on body where you'll likely encounter research related to blood rushing and sexual hormomes.