参考答案

正确答案：B
解析：题干中给出的是错误的干扰信息：“Emma decided to punish my mother because she didn’t go to school．”，译文为：爱玛决定惩罚我母亲因为她不去上学。根据原文“One Halloween，when she caught my mother trick-or-treating with school friends， Emma decided to…”，所以真正的原因是母亲和朋友们玩万圣节的游戏