Solve the problem.A person is considering three different stocks, and each is sensitive to a certain economic indicator. The indicator will be positive, neutral, or negative, and fluctuate randomly. The payoffs are given in the table below, in thousands of dollars. What investment strategy should the person make to obtain the best expected value of profit? 
A. Invest in Stock A with probability 1, invest in Stock B with probability 0, and invest in Stock C with probability 0.
B. Invest in Stock A with probability 5/13, invest in Stock B with probability 8/13, and invest in Stock C with probability 0.
C. Invest in Stock A with probability 4/13, invest in Stock B with probability 9/13, and invest in Stock C with probability 0.
D. Invest in Stock A with probability 0, invest in Stock B with probability 1, and invest in Stock C with probability 0.
Answer: B
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