Suppose that Ann's utilities for cherry and lime candies are c~ and QA, whereas Bob's utilities are cg and QB. (But once Ann has unwrappt:d a piece of candy, Bob won't buy it.) Presumably, if Bob likes lime candies much more than .4nn, it would be wise for Ann to sell her bag of candies once she is sufficiently sure of its lime content. On the other hand, if Ann unwraps too many candies in the process, the bag will be worth less. Discuss the problem of determining the optimal point at which to sell the bag. Determine the expected utility of the optimal procedure, given the prior distribution from Section 20.1.