The metabolic slowdown common to individuals in their early 30s and mid-50s will lead to ____ in many males

Marcus is an American male who just had intercourse for the first time. The BEST guess as to Marcus's age is that he is _____.

Please choose the correct answer from the following choices, and then select the submit answer button. 15 16 14 17 or 18

Evolutionary psychologists focus on cross-cultural differences in social behavior

Indicate whether this statement is true or false.