Based on Table 9.1, the statistical discrepancy is

Which of the following is NOT an example of an opportunity cost?

A) By spending Thursday night studying for an economics exam, a student was unable to complete a homework assignment for calculus class. B) Because David used all of his vacation time to paint his house, he was unable to visit the Caribbean last year. C) Because Mary is now being paid a higher wage, she can afford to buy a new car even though she is moving into a bigger apartment. D) By choosing to attend college, Jean was not able to continue working as an electrician; as a result, she gave up more than $85,000 in earnings while she was in college.

As "haircuts" increased during 2007-2009, financial institutions found that to borrow the same loan amount now required ________ collateral

A) less B) no C) more D) default-free