Maxine and Morton Shared Office Space and Performed the Same

Maxine and Morton shared office space and performed the same job for the eight years they worked at ABSee Graphics. One Friday, Maxine opened her pay envelope to find an amount twice as much as her usual pay. She was happily puzzled until she noticed Morton's name on the check. She exclaimed, "That's not fair! We do the same work. We should get the same pay!" Maxine's response a personal equity judgement based on

A) social pressure.
B) input identity.
C) social comparison.
D) perceptual action.
E) behavioral action.