The demand for good X Is estimated to be Qx = 10,000 - 4Px + 5Py + 2M + Ax, where Px is the price of X, Py is the price of good Y. M is income, and Ax is the amount of advertising on X. Suppose the present price of good X is $50, Py = $100, M = $25,000, and Ax =1,000 units. Based on this information, we know that the demand for good X is Multiple Choice O unitary elastic. O neither elastic, inelastic, nor unitary elastic. O clastic. O inelastic