Rhoc a Kammel takes out a 20-year mortgage to purchase a home. It is a conventional mortgage with level monthly payments that fully repay the amount borrowed. The 60th monthly payment consists of 360.17 of interest and 97.58 of principal. To the nearest 100, what is the amount that Rhoda originally borrowed? A) 71,000 B) 72,100 C) 72,500 D) 72,900 E) 73,500