The Difference Between a Positive Economic Statement and a Normative

The difference between a positive economic statement and a normative statement is that

A) a positive statement must be true; a normative statement is often not true
B) a normative statement must be true; a positive statement is often not true
C) a positive statement can be proved; a normative statement cannot
D) a normative statement can be proved; a positive statement cannot
E) a positive economic statement is a moral judgment; a normative economic statement is not a moral judgment