The Ezra motel borrowed $$70000$ to pay for a new surveillance system. The loan is for a period of $7$ years at an interest rate of $8\mathrm{.}5\%$ annually and requires $7$ equal end of year payments that include both principal and interest on the outstanding balance. How much in interest will be paid over the life of the loan?

a: $$28287$

b: $$28350$

c: $$25731$

d: $$41650$

e: $$30000$