Lucia purchased some shares in Darling River Cotton Co. Ltd five years ago. The company has not paid dividends for the last 8 years. Lucia paid $1.20 per share when he purchased the shares. They are now trading at $2.10 per share. Lucias average annual rate of return on her investment is Select one: a. 10.6% b. -10.6% c. -11.8% d. 11.8%