The answer to this question is equity
theory. The equity theory is a theory that was developed by the
behavioral psychologist John Stacey Adams. An equity theory of motivation
focuses on the idea that the people / employees are being motivated because of
the fairness that was being set to them by the company and if the employees
receive an unfair treatment they are being demoralized and un-motivated to do
well in their jobs / tasks.
You are basically forcing people to fight for your cause. Your telling someone to fight for you not what they want.
The right answer is D, Conflict Theory, This theory is part of the modern sociology and explains when a conflict transcends the individual and reaches a position or social level. Social conflicts are usually due to the scope of power, status or resources that the society they want to neutralize possesses.
I hope my answer can help you.
The answer would be the Celsius scale