which trigger should you add the code segment?

You create a Seminar Registration Line table.
You need to ensure that the Line Discount Amount is always calculated correctly.
You need to add the following code segment to the table:
“Line Discount Amount”:= ROUND(“Line Discount %” * Item. “Seminar Price” *
0.01,GLSetup. “Amount Rounding Precision”);
On which trigger should you add the code segment?

A.
OnModify

B.
Line Discount Amount – OnValidate

C.
Quantity – OnValidate

D.
Line Discount % – OnValidate