The correct answer is (a) Senapati.
Senapati is a district in the Indian state of Manipur. It is located in the central part of the state and is bordered by the districts of Imphal East, Imphal West, Thoubal, Ukhrul, Chandel, and Tamenglong. The district has a population of over 400,000 people and its headquarters is at Senapati town.
Senapati is known for its salt production. The salt is produced from the brine springs that are found in the district. The salt is used for domestic consumption and is also exported to other parts of India.
The other options are incorrect because they are not districts in Manipur that are known for their salt production.
(b) Noney is a district in the Indian state of Manipur. It is located in the north-eastern part of the state and is bordered by the districts of Ukhrul, Tamenglong, Chandel, and Churachandpur. The district has a population of over 100,000 people and its headquarters is at Noney town.
(c) Tamenglong is a district in the Indian state of Manipur. It is located in the north-eastern part of the state and is bordered by the districts of Ukhrul, Senapati, Chandel, and Churachandpur. The district has a population of over 200,000 people and its headquarters is at Tamenglong town.
(d) Chandel is a district in the Indian state of Manipur. It is located in the north-western part of the state and is bordered by the districts of Senapati, Tamenglong, Thoubal, and Imphal West. The district has a population of over 300,000 people and its headquarters is at Chandel town.