The correct answer is: c) Geyzing.
Geyzing is a town in the Indian state of Sikkim. It is the headquarters of the West Sikkim district. Geyzing is known for its tea plantations, which are located in the surrounding hills. The tea plantations in Geyzing are some of the oldest in India. They were established in the 19th century by British settlers. The tea plantations in Geyzing produce a variety of teas, including black tea, green tea, and oolong tea. The tea from Geyzing is known for its high quality and its unique flavor.
The other options are incorrect because:
- Namchi is a town in the Indian state of Sikkim. It is the headquarters of the South Sikkim district. Namchi is not known for its tea plantations.
- Mangan is a town in the Indian state of Sikkim. It is the headquarters of the North Sikkim district. Mangan is not known for its tea plantations.
- Yuksom is a town in the Indian state of Sikkim. It is the former capital of Sikkim. Yuksom is not known for its tea plantations.