What happens to custody of minor child after divorce?

Maine ye question 3 baar padha aur abhi bhi samajh nahi aaya 😭. Question: A divorced father's custody of a minor child is automatically terminated.

Options: A) Custody will go to mother by default B) Mother can petition for sole custody C) Father's custody can't be terminated without a new court order D) Child's welfare is the top priority in such cases

Maine apne gussa me option D likha tha, lekin abhi jhelne ke baad dekhaya toh sochta hoon kya yeh sahi hai ya nahi?