The correct answer is: a) Cattle.
Cattle are the most important livestock reared in Mizoram. They are used for their milk, meat, and dung. The state has a large population of cattle, which are reared by both small farmers and large commercial enterprises. Cattle are an important part of the Mizo economy and culture.
Goats are also reared in Mizoram, but they are not as important as cattle. Goats are used for their meat, milk, and hair. They are also used as pack animals.
Pigs are not reared in Mizoram in large numbers. They are considered to be unclean animals by the Mizos and are not eaten by most people.
Poultry is reared in Mizoram, but it is not as important as cattle or goats. Chickens are the most common type of poultry reared in Mizoram. They are used for their meat and eggs.