Suppose that a certain savings is expected to be $$10M$ at the end of year $3$ and to increase $$1$M each year until the end of year $7.$ If the minimum attraetive rate of return $($MARR$)$ is $208,$ what is present equivalent worth?

A$.24\mathrm{.}17M$

B$.27\mathrm{.}14M$

C$.21\mathrm{.}74M$

D$.21\mathrm{.}47M$