a.
The interest rate should be ignored, because there’s nothing a consumer can do to change it. b.The interest rate is essentially how long you have to pay off your loan, and the shorter the better.c.The interest rate can drastically change the total amount paid to the lender, in the case of mortgages, up to thousands of dollars. d.The interest rate does not change, even between banks, so choosing the right time to borrow is essential.