Thesis — The cost of a college education is too high and prohibits a majority of college-age people from attending.

Which evidence best supports the thesis above?

A. In 1980, the average cost of a year of college was less than
$5,000.

B. The average dropout rate for state colleges and universities is 35
percent.

C. Almost 70 percent of students are accepted into their first choice
college.

D. Students often leave college with more than $50,000 in student-
loan debt.