Which of the Following Is a Normative Statement

Multiple Choice

Which of the following is a normative statement?

A) The sky is blue.
B) The sky is green with pink polka dots.
C) Points on the production possibilities frontier (PPF) are efficient.
D) Points outside the production possibilities frontier (PPF) are unattainable with current resources.
E) We should strive to push the production possibilities frontier (PPF) outward.