The correct answer is A) Adilabad.
Adilabad is a district in the Indian state of Telangana. It is located in the northern part of the state, and is bordered by the states of Maharashtra and Chhattisgarh to the north, Karnataka to the east, and Andhra Pradesh to the south and west. The district has a population of over 3.5 million people, and its headquarters is the city of Adilabad.
Adilabad is a largely rural district, with agriculture being the main occupation of the people. The district is also home to a number of industries, including textiles, sugar, and paper. Adilabad is a popular tourist destination, and is known for its natural beauty, including its forests, waterfalls, and temples.
The other options are incorrect because they are not located in the northern part of Telangana. Hyderabad is the capital of Telangana, and is located in the central part of the state. Rangareddy and Nalgonda are districts that are located in the southern part of Telangana.