These are stage directions (A). As you probably know, The Importance of being Earnest is a play. This scene is not one that would be read out to the audience, it is what the audience would see on stage, ie stage directions. Since you are reading the play's script and cannot see the action on stage, stage directions have been provided for you in your text.
The intensive pronoun are pronouns that add extra emphasis on the subject (or object) and which can be removed. In this sentence "himself" is the intensive pronoun.
Answer:
The answer is A
Explanation:
Because prudence means to be disciplined or cautious so. The rest of the answer has to do with carelessness and incompetence.