According to communist theory, the value of a commodity is determined by the:

A. Gosplan
B. Five Year Plan
C. laws of supply and demand
D. amount of labor put into it

I think it's D?

I agree.

Thanks!

Yes, you are correct. According to communist theory, the value of a commodity is determined by the amount of labor put into it. This idea is known as the labor theory of value. To arrive at this answer, you can infer from your knowledge of communist theory or Marxism that the labor theory of value is a fundamental concept. However, it's always helpful to have some background knowledge to support your answer.