International Development homework help

The demand for video recorders has been estimated to be QV = 134 – 1.07PF + 46PM -2.1PV – 5I, where QV is the quantity of video recorders, PF denotes the price of video recorder film, PM is the price of attending a movie, PV is the price of video recorders, and I is income. Based on the estimated demand equation we can conclude: A. Video recorders are inferior goodsB. Video recorder film is a substitute for video recordersC. The demand for video recorders is inelasticD. The demand for video recorders are neither inferior nor inelastic and video recorder film is not a substitute for video recorders