How Are Economists Not Like Mathematicians, Physicists, and Biologists

Multiple Choice

How are economists not like mathematicians, physicists, and biologists?

A) Economists do not use models to represent the real world.
B) Economists do not try to address their subject with a scientist's objectivity.
C) Economists do not devise theories and collect and analyze data in an attempt to verify or refute their theories.
D) Economists cannot run lab experiments in the same way that other scientists can.