How will you define fuel surcharge calculation in SAPTM?

A carrier has an agreement with a shipper on January 1st, for fuel price as 5% of the base freight. Fuel surcharge is pegged to the current price of 3 USD a gallon. The fuel surcharge can change proportionally based on the fuel price on the pricing date.

How will you define fuel surcharge calculation in SAPTM? Note: there are 2 correct answers to this question.
A . Use a calculation reference for the fuel surcharge charge item
B . Use a rate table determination rule for fuel surcharge
C . Use an index table for the fuel surcharge charge item
D . Use a rate table for fuel surcharge with pricing date as a scale

Answer: A,C