The expected value with perfect information is:

the difference between the payoff under perfect information and the payoff under risk.

the maximum EMV for a set of alternatives.

obtained using conditional probabilities.

the expected return obtained when the decision maker knows which state of nature is going to occur before the decision is made.

the same as the expected value of perfect information.

$$-30$ profit

$$66$ profit

$$36$ profit

$$75$ profit

$$3$ profit