$"2.$ You are offered two investment options:

Option $1$: Invest $$10,000$ today and receive $$2,500$ annually for $5$ years.

Option $2$: Invest $$8,000$ today and receive $$2,000$ annually for $5$ years."

a$)$ Assume i $=7\mathrm{.}5\%.$ How much you will get after $5$ year with each option?

b$)$ Which is the best option? Explain