Answer:
(b) pay a $ 5 comma 000 down payment and finance the rest with a 0 % APR loan over 30 months.
Explanation:
In this case this is the best option to keep the lowest interests in your wallet, having to pay the whole thing for $18,000 that would start to generate interests in the credit card as for the day one, oaying just $5,000 and having the opportunity to finance the rest is the one that would let you generate the less interests in your credit card.