Which of the following is a true statement?a. when making decisions about saving and borrowing, people care about the nominal interest rateb. Profit-maximizing firms will borrow to fund an investment if and only if the expected return on the investment is equal to the interest rate on the loanc. a falling interest rate will lead to a movement along the demand curve for loanable fundsd. If the rates of return on fine art purchases fall, savers will be more inclined to put their savings into art as an investment