Which of the following statements is correct?

Which of the following statements is correct? 

(i) To succeed in the tort of negligence, a claimant must show that the defendant owed him a duty of care.

(ii) To succeed in the tort of negligence, the defendant must have broken a duty to take care.

(iii) To succeed in the tort of negligence, it is necessary to show that the claimant suffered loss or harm as a result of the defendant's breach of duty.