Stefani is purchasing a house and finances $410,350 of the purchasing price. The mortgage is a 30 year 7/3 ARM at 6.5% with a 4/13 cap structure. What will the remaining balance be after the first seven years? (show work)

A= $371,023.06
B= $217,870.06
C= $357,112.36
D= $192,479.94