Kate owns a food truck. She divides her potential customers into two groups and gives discount coupons to the one she thinks is especially price sensitive$.$ How should she set the price for each group? Kate should consider the $q,$ for each group separately and then choose each group's price $q,$

$q,$ marginal benefit; so that it is equal to marginal cost where it intersects with marginal benefit marginal benefit; at the point on the marginal benefit curve where the average cost is minimized demand curve; at the point on marginal cost curve where marginal cost equals marginal revenue demand curve; on its demand curve based on the quantity where marginal cost equals marginal revenue