You bought an apartment building with $$75,000$ cash and a mortgage loan of $$850,000.$

The loan was made at an interest rate of $6\mathrm{.}75\%$ and requires monthly payments

for $20$ years. What are the monthly payments?

a$.$ $$1,510\mathrm{.}69$

b$.$ $$5,873$

c$.$ $$6,463\mathrm{.}09$

d$.$ $$2,851$