The last dividend $($Divo$)$ is $$1\mathrm{.}80,$ the growth rate $(g)$ is $6\%,$ and the required rate of return $(r)$ is $12\%.$ What is the stock price according to the constant growth dividend model?

$$ A$.$ $$31\mathrm{.}80$

B$.$ $$30\mathrm{.}80$

C$.$ $$30\mathrm{.}00$

D$.$ $$15\mathrm{.}00$