An investor decides to form a portfolio by putting 40% of wealth in stock A and the rest in B. Below it shows the possible states of economy and the expected rate of return for each stock under each state. Given the information, what is the expected return of the portfolio?

State of Economy	Probability of State	Stock A Rate of Return	Stock B Rate of Return
Boom	20%	11%	22%
Normal	50%	7%	11%
Recession	30%	-6%	-18%

6.79%

5.83%

4.26%

3.90%