14. For his sons college education, Pat deposited $25,000 into an annuity earning 4.2% compounded quarterly. His son is to receive payments at the end of every quarter for five years.

a. How much will his son receive each quarter?

b. How much of the third payment is interest?

c. How much of the payments made in the third year will come from the accounts principal?

d. If his son finishes his education in four years instead of five and closes the account upon graduation, what total interest will he have received?