P9 Father's survival Is (name's) biological father still alive? (Write appropriate code: Yes = 1, No = 2, Don't know = 3)

Question P9: Father's Survival
Is (name's) biological father still alive?
104. Write code '1' if the father is alive and code 2 if the father of the person being enumerated died. In case nobody knows the survival status of the person's father, write code 3 for "Don't Know".