Which one of the following statements regarding disclosure is true?
1. The seller and licensees need not disclose to a prospective buyer the manner or occurrence of an occupant's death in the home if it occurred within the past three years.
2. HIV/AIDS cannot be disclosed even when asked; by law HIV/AIDS are not material facts that require disclosure.
3. If an occupant died of AIDS or an AIDS-related syndrome within the past three years, that fact must be disclosed to a prospective buyer.
4. If asked by a prospective buyer if an occupant died of AIDS or an AIDS-related syndrome within the last three years, the seller or licensee must reply truthfully if known.