Dietterich Electronics wants its shareholders to earn a return of $15\%$ on their investment in the company. At what price would the stock need to be priced today if Dietterich Electronics had a

a$.$$$0\mathrm{.}30$ constant annual dividend$$ forever?

b$.$$$1\mathrm{.}10$ constant annual dividend$$ forever?

c$.$$$1\mathrm{.}90$ constant annual dividend$$ forever?

d$.$$$2\mathrm{.}50$ constant annual dividend$$ forever?