Correct Answer: Introvert

Solution : The correct choice is the first option .

An introvert is a term used in psychology to characterise individuals who tend to be more inward-focused, reflective, and reserved in social situations. They often prefer solitary activities or smaller groups.

The meanings of the other words are:

• Extrovert : This means an outgoing and sociable person who enjoys social interactions and gains energy from being around others.
• Chauffeur : It refers to a professional driver employed to drive a private car, often hired by individuals or companies.
• Talkative : Someone who enjoys speaking frequently or at length, often engaging in conversations or discussions.

So, the most appropriate word to substitute is introvert .