The Goal of an Economist Who Formulates New Theories Is

The goal of an economist who formulates new theories is to

A) provide an interesting framework of analysis, whether or not the framework turns out to be of much use in understanding how the world works.
B) provoke stimulating debate in scientific journals.
C) demonstrate that economists, like other scientists, can formulate testable theories.
D) contribute to an understanding of how the world works.