EVANSTON — Northwestern’s top-tier sororities have made it clear that they strongly oppose the Panhellenic Association’s proposal for the setting of a price ceiling in the cute guitar-playing boy market. The cute guitar-playing boys, referred to as GPBs, face a huge spike in demand during Big/Little Week, during which sororities anonymously shower their new “Littles” with gifts, food, movie parties, and the chance to be serenaded by a GPB in front of other Littles. Sarah Smith, an Economics major and