Refer to the Exhibit. Output card #2 creates a summary report that provides run time statistics. The Amount field in output card #2 is the total amount of all orders in the NewSysFile. Select the…

=SUM(TotalAmount Field:NewSysFile) would redundantly re-sum a field that already contains the total, adding unnecessary processing overhead when a direct reference suffices.

The TotalAmount field in NewSysFile already represents the pre-accumulated total for all orders in the file, so the rule =TotalAmount Field:NewSysFile directly maps that value without any additional computation, making it the most efficient choice. No summation or arithmetic is needed because the accumulation has already occurred upstream in the map logic.

=ADD(ExtendedPrice Field:.:NewSysFile) sums individual line-item extended prices rather than referencing the pre-calculated TotalAmount, making it less efficient and more error-prone.

Multiplying ExtendedPrice by No_of_Records assumes every order has an identical amount, which is not valid for a general total-of-all-orders calculation.