What's the present value of a $4-$year ordinary annuity of $$2,000$ per year plus an additional $$1,050$ at the end of Year $4$ if the interest rate is $5\%?$ a$.$ $$10,610\mathrm{.}67$ b$.$ $$7,842\mathrm{.}23$ c$.$ $$7,955\mathrm{.}74$ d$.$ $$8,903\mathrm{.}29$