The correct answer is Option (3) → Wimbledon

- The oldest tennis tournament in the world is Wimbledon.

- It was first held in 1877 and is still played annually in the All England Lawn Tennis and Croquet Club in Wimbledon, London, United Kingdom. Wimbledon is considered one of the most prestigious and iconic tennis tournaments, known for its grass courts, traditional white attire, and rich history in the sport.