Use financial calculator to solve the problem:

As part of Ford's sales campaign, the dealership is offering a $4,000 cash rebate on its F-150 pickups which sell for $28,000 or 0.9% financing for four years on the entire $28,000 purchase price. You can borrow $24,000 of 4-year auto loan from your bank at a 5.4% APR. Assume that you would like to make monthly payments for your financing.

1. (4 points) Which option would you choose between the cash rebate and the 0.9% financing? You MUST provide every detail.
2. (3 points) What would be the interest rate offered by the bank that makes both options indifferent?