Marginal benefit represents the additional satisfaction from consuming one more unit of a good. Opportunity cost is the value of the best alternative forgone when making a decision.
Marginal benefit refers to the additional satisfaction gained from consuming one more unit of a good or service. In this scenario, the additional satisfaction of having a tenth shirt to choose from when getting dressed is an example of a marginal benefit. On the other hand, the opportunity cost is the value of the next best alternative forgone, which in this case would be the new smartphone that could have been purchased with the $30 instead of the tenth shirt.
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