Answer:
doctrine of impossibility
Explanation:
Based on the scenario being described, Dr. Lambert's best defense to this claim would be the doctrine of impossibility. This doctrine basically protects individual's in these types of situations as long as they can prove that the targetted reason for the claim does not make completing the tasks required by the contract impossible. This perfectly applies to this situation because Dr. Lambert's obsessive-compulsive disorder may be unsettling to the other doctors or supervisors but it does not prevent Dr. Lambert from fully and correctly completing his responsibilities as a cardiothoracic-surgeon, and therefore the doctrine of impossibility would be a great defense to his claim.
