The correct option is C will never sell a product whose demand is inelastic at the quantity sold
Monopolistic competition is a market structure where there are large number of sellers selling differentiated products. There is also no barriers to entry. Every body can fix the price as per their choice. But to sell product on a large scale, they focus on advertisement, discounts.etc Hence, to earn profits, a monopolistic firm will never sell a product whose demand is inelastic at the quantity sold.