✨ คำตอบที่ดีที่สุด ✨
Refund定義
an amount of money that is given back to you, especially because you are not happy with a product or service that you have bought
Reimbursement
定義
the act of paying back money to someone who has spent it for you or lost it because of you, or the amount that is paid back
所以refund會更為貼切,故選D
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