The correct answer is: A) Nalgonda.
Nalgonda is a district in the Indian state of Telangana. It is located in the central part of the state and is bordered by the districts of Ranga Reddy, Hyderabad, Medak, Karimnagar, Warangal, and Khammam. The district has a population of over 3.5 million people and is the third most populous district in Telangana.
Nalgonda is known for its cotton handlooms. The handloom industry is one of the major industries in the district and employs a large number of people. The handloom products from Nalgonda are known for their quality and are exported to many countries around the world.
The other options are incorrect because they are not districts in Telangana.