Explanation:

Article 310(1) says about the Doctrine of Pleasure and the provision is such that the civil servants and the defense personnel would hold the office upon the ‘pleasure’ of the President/Governor respectively at the Union and the State levels.
Doctrine of Pleasure in India

• Doctrine of Pleasure under the Indian Constitution is also based on the same policy considerations as it existed under the common law in England. Though doctrine of pleasure is accepted in India as it has developed in England, it has not been completely accepted in India. This means that the Doctrine is subject to constitutional limitations. Therefore, when there is a specific provision in the Constitution giving to servant tenure different from that provided in Article 310, then that servant would be excluded from the operation of the pleasure doctrine.

The following are expressly excluded by the Constitution from the rule of Pleasure. They are

• Supreme Court Judges (Article 124)
• Auditor General (Article 148)
• High Court Judges (Article 217, 218)
• A member of Public Service Commission (Article 317)
• The Chief Election Commissioner.

Hence option 3rd is correct.