An engineer invested $$150,000$ in a company. In return, she received $$12,000$ per year for $7$ years and her $$150,000$ investment back at the end of the $7$ years. Her rate of return on the investment was approximatelyQuestion $15$ Select one:a$\mathrm{.}12\mathrm{.}11\%$b$\mathrm{.}8\%$c$\mathrm{.}8\mathrm{.}15\%$d$\mathrm{.}12\%$