Loan amortization: ending balance

$8.$ Suppose you borrowed $$15,000$ at a rate of $6\%$ and must repay it in $4$ equal installments at the end of each of the next $4$ years. How much would you still owe at the end of the second year, after you have made the second payment?

a$.$ $ $3,634\mathrm{.}60$

b$.$ $ $4,083\mathrm{.}84$

c$.$ $ $4,328\mathrm{.}87$

d$.$ $ $7,936\mathrm{.}52$

e$.$ $$11,571\mathrm{.}13$