Taggart Inc.'s stock has a 50% chance of producing a 36% return, a 30% chance of producing a 10% return, and a 20% chance of producing a -28% return. What is the firm's expected rate of return? Do not round your intermediate calculations. Select one: a. 12.01% b. 14.01% c. 15.86% d. 15.71% e. 15.40%