The correct answer is Agriculture.
Agriculture is the primary sector of Bihar’s economy, accounting for over 50% of the state’s GDP. The main crops grown in Bihar are rice, wheat, maize, sugarcane, and pulses. The state also has a significant livestock population, including cattle, buffalo, goats, and sheep.
Manufacturing is the secondary sector of Bihar’s economy, accounting for around 20% of the state’s GDP. The main industries in Bihar are textiles, food processing, and pharmaceuticals.
The service industry is the tertiary sector of Bihar’s economy, accounting for around 30% of the state’s GDP. The main services in Bihar are transportation, communication, and trade.
Mining is a small but important sector of Bihar’s economy, accounting for around 1% of the state’s GDP. The main minerals mined in Bihar are coal, iron ore, and bauxite.
In conclusion, the primary sector of Bihar’s economy is dominated by agriculture. The secondary sector is dominated by manufacturing, and the tertiary sector is dominated by the service industry. Mining is a small but important sector of the state’s economy.