Final answer:
The choice that best answers the question is D. someone who betrays his or her country.
Step-by-step explanation:
The choice that best answers the question is D. someone who betrays his or her country. Treason refers to the act of betraying one's country, typically by providing aid or comfort to an enemy. This is considered a serious crime because it undermines national security and can pose a threat to the welfare of a country and its citizens.
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