Suppose the supply curve for wool mittens is represented​ as: Q​ = 50​ + 1/2X​ - 5Y​ - 24Z. Which one of the following statements below is​ true?A. The variable Y could be the price that wool mittens sell for in the market. B. The variable X could be the price of the wool used to make mittens. C. The variable Y could be the price of the wool used to make mittens.D. The variable X could be consumers income.