The most common livestock reared in Bihar include:

The correct answer is: d) All of the above.

Cattle and buffaloes are the most common livestock reared in Bihar, followed by sheep and goats. Poultry is also reared in significant numbers.

Cattle and buffaloes are reared for their milk, meat, and dung. Sheep and goats are reared for their meat, milk, and wool. Poultry is reared for their meat and eggs.

The livestock sector plays an important role in the economy of Bihar. It provides employment to a large number of people and contributes to the state’s GDP. The government of Bihar has taken several initiatives to promote the livestock sector, such as providing subsidies on inputs, setting up veterinary hospitals, and organizing training programs for farmers.