$12)$ Jaynestown Corp is currently priced at $25\mathrm{.}00$ per share. They just paid their annual dividend of SI $24.$ They have been experiencing growth in dividends of $25\%$ and expect hs io continue. What is the firm's cost of equity? a$)4\mathrm{.}00\%$ b$)7\mathrm{.}58\%$ c$)9\mathrm{.}06\%$ d$)10\mathrm{.}02\%$ e$)12\mathrm{.}40\%$