In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Question: A health professional is exempted from the obligation of professional secrecy in the following circumstance:
Options: <1> Presence of an infectious disease. <2> Suicide attempt. <3> Refusal of the patient to avoid contagion to other people. <4> Suspicion of mistreatment. <5> Upon the request of a lawyer.
3