what is the answer to number 8 and explain why the other options are incorrect

D. Effective price ceiling E. Effective price floor 8. In order for a firm to engage in price discrimination, it must be A. able to separate consumers into different groups based on demand elasticities X (B. producing in the inelastic portion of its demand curve to raise its price and increase total revenue Ca-price taker D. experiencing economies of scale in the relevant range of production E. experiencing constant marginal cost