What is the total payback for each mortgage option if Andrea and Stanley have decided on a $320,000 mortgage value for their new house with a 30-year term?
a) Mortgage A: $583,000; Mortgage B: $618,220
b) Mortgage A: $583,000; Mortgage B: $618,220
c) Mortgage A: $583,020; Mortgage B: $618,220
d) Mortgage A: $583,020; Mortgage B: $618,240