Roland took the kids shopping for school supplies . He came back miserable that he had spent $ 100 . The kids wanted these fancy binders , and mechanical pencils , and Gary wanted a little white board to write his assignments on . Then he just bought erasers and notebooks and stuff .

Question: Why was Roland so upset ?
Answer: Because while they were shopping , the kids had been unrulyBecause the kids had misbehaved in the store and knocked things overBecause the children had been hard to control while shoppingBecause he had not meant to spend so much