18. Please select the correct statements on the Bass Diffusion Model. (Check all that apply) a. Bass models diffusion pattern is always the same across different industries b. Sales from the innovators decrease after the new products introduction in a typical Bass model c. The Word-of-mouth effect is captured in the Bass model d. The Bass diffusion model is used only before the new product is introduced in the market to predict the adoption of the new product e. Two main sources in the Bass model are sales from innovators and sales from early adopters