The ABC Co$.$ just paid a $$3$ dividend. Margaret just bought a

common share of ABC Co$.$ for $$60$ and has an annual return

expectation of $8\%$ on her investment. Assuming a dividend

discount model, what is the implicitly assumed perpetual

dividend growth rate of the ABC Co$.$ stock to be fairly priced?

a$.0\%$

b$.4\mathrm{.}29\%$

c$.3\mathrm{.}5\%$

d$.2\mathrm{.}86\%$