On the delivery of an insurance policy that contains an exclusion rider for a past health condition, an agent must do which of the following? I. Explain, to the best of his/her ability, the rider and the specific exclusions. II. Obtain the insured's signature on the amendment form. III. Change any statement on the application that he/she thinks may be incorrect. A. I only B. II only C. I and II only D. I, II and III