In order to determine whether to test a life insurance applicant for HIV or AIDS, the insurer may do which of the following: I. Base its decision to test on the incidence of AIDS in the person's ZIP code; II. Test only persons who are single and under age 30; III. Establish minimum uniform standards for testing all applicants for insurance; or IV. Not test anyone for HIV or AIDS, because it is discriminatory.


(Choose from the following options)
1. III only.
2. I and II.
3. IV only.
4. I, II, III and IV.