Darby bought a house for $445,000. She finance $356,175 of the purchase price with a 25 year fixed rate mortgage with a 7.15% interest-rate. What is the total cost of the principal and interest after 25 years? (show work)
 A= $765,468.00
 B= $956,364.00
 C= $774,442.25 
 D= $967,577.25