Suppose that you learned to make peanut-butter-and-jelly sandwiches by spreading peanut butter on one piece of bread,jelly on the other,and then placing the two pieces together.You are now making sandwiches for a crowd,and you use this same strategy.However,it would be more efficient to first spread peanut butter on half the pieces,and then spread jelly on the other half.Your inefficient problem solving illustrates the concept called

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The concept illustrated in this scenario is mental set, which refers to the tendency to approach a problem the way we've always approached similar problems, even if a more efficient or effective method is available. In this case, the person is using a familiar method for making sandwiches, despite the fact that a better method exists. Therefore, the correct choice is C.

Suppose That You Learned to Make Peanut-Butter-And-Jelly Sandwiches by Spreading