Susan is considering an investment in Birmingham$-$based Medical Properties Trust, which owns healthcare properties across the nation. The stock is very depressed, and she belleves it will be a good investment as interest rates drop over the next couple of years. Her required rate of return on the investment $20\%$ and she expects dividends over the next three years of $$2\mathrm{.}55,$$$3\mathrm{.}25$ and $$4\mathrm{.}50.$ At the end of three years, she expects to be able to sell the stock for $$125$ per share. What is the most Susan can pay and still earn her required $20\%$ return?

$78\mathrm{.}89$

$79\mathrm{.}03$

$79\mathrm{.}18$

$79\mathrm{.}32$