What does$"2/10"$ mean, with respect to$$ "credit terms of$2/10,$ n$/30"?$

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Part $1$

A$.$

Interest of $10$ percent will be charged if invoice is paid after two days.

B$.$

Interest of $2$ percent will be charged if the invoice is paid after $10$ days from the invoice date.

C$.$

A discount of $2$ percent will be allowed if the invoice is paid within $10$ days of the invoice date.

D$.$

A discount of $10$ percent will be allowed if the invoice is paid within two days of the invoice date.