The opportunity cost of attending college is likely to be highest for a high school graduate a. who is capable of playing a well-paid professional sport. b. who has access to student loans. c. whose family is extremely wealthy. d. who is very intelligent.

d. who is very intelligent.

Explanation:

An opportunity cost refers to the opportunities that are sacrificed when choosing to take another opportunity. In this case, the opportunity cost would be highest on a high school graduate who is very intelligent. That is because instead of going to college they could use that time to take up another opportunity that would make them more money than a college education ever could.

the page presents four different kinds of threats that volcanoes pose and what to do before, during, and after an eruption.

the answer is b for dog