What is the present value of $$20,000$ received today, $$2,500$ received at the end of each

of the next four years and $$10,000$ received at the end of the $5^{th}$ year, assuming

a required rate of return of $7\mathrm{.}50\%?$

a$.$ $$38,143$

b$.$ $$35,339$

c$.$ $$29,990\mathrm{.}22$

d$.$ $$37,410$