单选题 I'm sorry I'm late. I had a mental ______ and forget that we would have a meeting today.
A. aberration B. perversion C. imbalance D. sanity

【正确答案】 A

【答案解析】[解析] 各选项的意思为：aberration“偏差；心理失常”，mental aberration“精神迷乱”；perversion“歪曲，变坏”；imbalance“不平衡；失调”；sanity“神志正常”。根据句意可知，答案是A。