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.

a. 15.71%

b. 20.06%

c. 20.01%

d. 15.40%

e. 16.01%