Which among the following sentences contains a reflexive pronoun?

The correct option is A) ‘Rajat brought himself chocolate’. The words that are used in place of a noun are pronouns.  The name of a person, place, animal, or item can be the noun that is replaced. Reflexive pronouns are those which show that the actions done by the subject reflect back to them. The given statement, ‘Rajat brought himself chocolate’, shows ‘Rajat’ as a subject and buying himself chocolate as the action getting reflected back. In the other three options no reflex action can be observed; hence making option (A) the required answer.