The correct answer is D. Ration card.
A PAN card is a Permanent Account Number issued by the Income Tax Department of India to individuals and entities. It is a 10-digit alphanumeric number that is used as a tax identification number. A PAN card is a valid proof of identity and address.
A baptism certificate is a document that is issued by a church to confirm that a person has been baptized. It is a valid proof of date of birth.
A service register is a document that is maintained by an employer to record the service details of an employee. It is a valid proof of employment.
A ration card is a document that is issued by the government to individuals or families to enable them to purchase essential commodities at subsidized rates. It is not a valid proof of age.