A firm$$s stock is selling for $$37\mathrm{.}50$ on January $1$st$.$ One day earlier they paid a $$4$ dividend and dividends are expected to grow at $6\%$ per year. What is the required return?

a$.10\mathrm{.}50\%$

b$.16\mathrm{.}45\%$

c$.14\mathrm{.}99\%$

d$.17\mathrm{.}31\%$