One Hundred Identical Mortgages Are Pooled Together into a Pass-Through

Multiple Choice

One hundred identical mortgages are pooled together into a pass-through security. Each mortgage has a $150,000 principal, a fixed annual interest rate of 8 percent (paid monthly) , and is fully amortized over a term of 30 years.
-For the first monthly payment, what portion is principal and what portion is interest?

A) $100,000 principal and $10,065 interest.
B) $12,000 interest and no principal.
C) $100,000 interest and no principal.
D) $100,000 interest and $10,065 principal.
E) $10,000 interest and $2,000 principal.