题目解析：
A Sure, you can borrow my charging cord.原句问“自动关机原因”，而选项说的是“借充电线”，与故障无关。答非所问。B The door should remain shut and locked.选项说的是“门应该一直关闭且锁上”，与“电脑故障”完全无关，属于话题偏离。C Because the schedule was changed at the last minute.选项提到“日程变更”，但电脑自动关机与日程安排无直接关联。D Sounds like it needs to be repaired.正确回答。直接回应故障现象，建议“需要修理”，符合语境且逻辑连贯。
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