Tom had to choose between spending $45 on a concert ticket or on groceries. Since he bought the groceries, we know that the opportunity cost of getting the ticket was __________.

Tom spent the $45 on groceries, so he gave up the concert ticket. His choice suggests that the value of the groceries was greater than the value he placed on attending the concert. Therefore, the opportunity cost of getting the ticket—the groceries he would have had to give up—was too high for him.

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