Assume a firm lowers price below marginal cost to deter entry

Which of the following is not a way by which price-discriminating firms can segment a market?

A) on the basis of the supplier's marginal cost of production, for example requiring customers to pay a premium for customizing options B) on basis of the buyer's location, for example requiring out-of-state students to pay higher tuition C) on the basis of time of purchase, for example long-distance calling D) by requiring an advance purchase, for example airline tickets

The long-run supply curve of a market for eggs is perfectly inelastic

Indicate whether the statement is true or false