The playground of lawn tennis is called

The correct answer is: A. court

A court is a rectangular area surrounded by walls or fences, used for playing games or sports. In lawn tennis, the court is made of grass or artificial turf, and is divided into two halves by a net. The object of the game is to hit the ball over the net and into your opponent’s court, so that they cannot return it.

The other options are incorrect because:

• A ring is a circular band or hoop. It is not the correct shape for a lawn tennis court.
• An arena is a large, open space surrounded by seats, used for public events such as concerts or sporting events. It is not the correct size or shape for a lawn tennis court.
• A rink is a large, flat surface, usually made of ice, used for skating or ice hockey. It is not the correct surface for a lawn tennis court.