2. When the price of an apple is $5, the quantity demanded is 120 apples per month； when the priceis $7, the quantity demanded is 100 apples per month.
(A) The price elasticity of demand is elastic.
(B) Using the midpoint method, the price elasticity of demand is about 0.3.
(C)If the cross-price elasticity of demand between apples and oranges is 1.5, they are substitutes.
(D) If the supply elasticity of apples is 0.1, then the apple sellers will bear a greater burden of a taximposed on the market, even if the tax is imposed on the buyers.