Is a prepaid phone plan right for you? smartphone service providers are offering no-contract plans. for example, t-mobile's "flexpay" plans allow users to buy monthly service; boost mobile's no-contract plan has unlimited use; and virgin mobile's plan has unlimited calling for $49.99 a month. all providers are actively marketing their no-contract plans. source: wall street journal, april 22, 2009 smartphone service plans are sold in a market. a. discriminating b. oligopolistic c. monopolistic d. perfectly competitive e. monopolistically competitive the characteristics of the smartphone service plan market are a. a large number of firms competing by making similar but slightly different products with no single firm dictating market conditions b. a single firm with no close substitutes and a barrier to entry c. a large number of firms competing by making similar but slightly different products with barriers to entry that prevent the entry of new firms d. a small number of firms competing by making similar but slightly different products e. many firms selling an identical product to many buyers