What is the difference between a positive economic statement and a normative statement?
a. A normative statement can be proved; a positive statement cannot.
b. A positive economic statement is a moral judgment; a normative economic statement is not a moral judgment.
c. A positive statement must be true; a normative statement is often not true.
d. A normative statement must be true; a positive statement is often not true.
e. A positive statement can be proved; a normative statement cannot.