Taggart Inc.'s stock has a 50% chance of producing a 30% return, a 30% chance of producing a 6% return, and a 20% chance of producing a -20% return. What is the firm's expected rate of return? Do not round your intermediate calculations.

a. 16.00%

b. 12.80%

c. 16.80%

d. 18.67%

e. 17.20%