Maybe C and D have other interests than just studying? Maybe they will get something out of that traded time that the A won't, which will give them an actual edge in the real world, non academic world.
Your statement is flawed and an awful generalization. Are you frustrated some of your C and D friends are more successful than you?
Your statement is flawed and an awful generalization. Are you frustrated some of your C and D friends are more successful than you?