問題：In the tort of negligence, what does the rule that there must be causation mean?
　　A. The claimant must show that the accident would not have occurred but for the negligence of the defendant.
　　B. The intervention of a third party will relieve the defendant of responsibility.
　　C. The defendant is responsible only for the reasonably foreseeable consequences of his or her actions.
　　D. The defendant is responsible for the direct and immediate consequences of his or her actions.
　　答案：The correct answer is: The claimant must show that the accident would not have occurred but for the negligence of the defendant.
　　解析：The 'but for' test establishes causation.
　　It is correct that the defendant is responsible only for the reasonably foreseeable consequences of his or her actions, but this is the rule of remoteness and the question asks for the rule of causation.