The correct answer is: d) All of the above.
Assam is known for its indigenous pig breeds, including Ghungroo, Niang Megha, and Doom. These breeds are known for their hardiness and adaptability to the local climate. They are also known for their good meat quality.
Ghungroo is a small breed of pig that is found in the Brahmaputra Valley. It is a black or brown pig with a white belly. Ghungroo pigs are known for their good meat quality and their ability to produce large litters.
Niang Megha is a medium-sized breed of pig that is found in the hills of Assam. It is a black or brown pig with a white belly. Niang Megha pigs are known for their hardiness and their ability to produce large litters.
Doom is a large breed of pig that is found in the Brahmaputra Valley. It is a black or brown pig with a white belly. Doom pigs are known for their good meat quality and their ability to produce large litters.
All of these breeds of pigs are important to the local economy and culture. They are used for their meat, their labor, and their manure.