The johnsons are buying a house that costs $210,000 and can afford a 20% down payment. if the johnsons want the lowest monthly payment, which loan option would you recommend? a. 30 year fha, 3.5% down at a fixed rate of 6.25% b. 30 year fixed, 20% down at a fixed rate of 6% c. 30 year fixed, 10% down at a fixed rate of 6% d. 15 year fixed, 20% down at a fixed rate 5.5%