Sellers that use group pricing can avoid resentment towards those who pay less by publicizing a pricing structure where certain groups _____ rather than where other groups _____. Group of answer choices a.receive a discount off the normal price; pay a premium above the normal price b.earn a lower price; are forced to subsidize others. c.are penalized with a higher than normal price; qualify for a discounted price. d.pay less than their marginal benefit; pay more than their marginal benefit.