Taggart Inc.'s stolk has a 50% chance of producing a 36% retum, 30% chance of producing a 10% return, und a 20% chance of producing a -28% retur. What is the firm's expected rate of return? Do not found your intermediate calculations O a. 15.86% Ob. 12.01% c. 14.01% d. 15.40% O. 15.715