The Conventional Way to Distinguish Between the Overloaded Preincrement and Postincrement

Multiple Choice

The conventional way to distinguish between the overloaded preincrement and postincrement operators (++) is:

A) To assign a dummy value to preincrement.
B) To make the argument list of postincrement include an int.
C) To have the postincrement operator call the preincrement operator.
D) Implicitly done by the compiler.