If the real interest rate rises, people

Suppose that you lend $1,000 to a friend and he or she pays you back one year later. What is the opportunity cost of lending the money?

A) the nominal interest rate that would have been earned on the money B) There is no cost. C) the implicit cost of the money D) the real interest rate that would have been earned on the money

Improved quality in health care services is partly responsible for increases in health care costs in the United States

Indicate whether the statement is true or false