The Primary Goal of an Argument Is to _____, While

The primary goal of an argument is to _____, while the primary goal of an explanation is to _____.

A) show that some proposition is true; show why it is true
B) show why some proposition is true; show that it is true
C) convince another person of some proposition; convince oneself
D) convince oneself of some proposition; convince another person
E) show that some proposition is true; show that some proposition is false