The correct answer is option (C):
Car
The question presents an analogy: "Pilot is to aircraft as chauffeur is to...". This means we need to identify the relationship between a pilot and an aircraft, and then find a similar relationship for a chauffeur.
A pilot operates or controls an aircraft. Similarly, a chauffeur operates or drives a car. Therefore, the most appropriate answer is "Car".
The other options are incorrect:
* Kitchenette: This is a small kitchen and doesn't relate to the role of a chauffeur.
* Restaurant: A chauffeur might take someone to a restaurant, but the restaurant isn't something the chauffeur operates.
* Cargo: Cargo is the load being transported, not the vehicle driven by a chauffeur.