For 2019, which one of the following is a requirement for deductible alimony payments (assume divorce was in 2015)? 1. The divorce decree must state that the payments are includible by the payee. 2. The payee must file a joint income tax return with the payor at the end of the calendar year. 3. The payments cannot extend beyond the death of the payee spouse. 4. The divorce decree must state that the payments are deductible by the payor. 5. Payments must be for the purpose of discharging a support obligation arising from the marriage.