Answer: <u>Opportunity cost</u> is what you give up (the benefits of the next best alternative) when you make a choice.
Explanation:
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Meaning if you have the same enemy, you guys are friends (common enemy)
C., because netiquette is the correct or acceptable way of communicating on the Internet, and the only process of communication in any answer is C, which is language.
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The magistracy's act of marking Hester Prynne with a scarlet letter makes people in the community fear becoming similarly shamed.
