Which of the following statements about demand and supply is not true?

A. demand creates supply and supply creates demand.

B. The only variable that can cause a change in the quantity demanded or quantity supplied of a product is the price.

C. Supply increases or decreases based on the non-price determinants of supply, the GRANT variables.

D. Demand increases or decreases based on the non-price determinants of demand, the RINTE variables.