In terms of paying less in​ interest, which is more economical for a ​$210 comma 000 ​mortgage: a​ 30-year fixed-rate at 9​% or a​ 20-year fixed-rate at 8.5​%? How much is saved in​ interest? Question content area bottom Part 1 Select the correct choice below and fill in the answer box within your choice. ​(Do not round until the final answer. Then round to the nearest thousand​ dollars.) A. The​ 30-year 9​% loan is more economical. The buyer will save approximately ​$ select: 182,436.76 enter your response here in interest. B. The​ 20-year 8.5​% loan is more economical. The buyer will save approximately ​$ enter your response here in interest.