Which article of Indian constitution deals with 'Doctrine of pleasure'?

 a) Article 310
 b) Article 224
 c) Article 110
 d) Article 93

Article 310 Article 310 of the Indian Constitution incorporates the Common law doctrine of pleasure. It expressly provides that all persons who are members of the Defence Services or the Civil Services of the Union or of All-India Services hold office during the pleasure of the President.