The correct answer is A. 60%.
The net cultivated area in Bihar is 60% of the total area. This means that 60% of the land in Bihar is used for agriculture. The remaining 40% of the land is used for other purposes, such as forests, settlements, and industries.
The percentage of net cultivated area out of total area in Bihar is higher than the national average of 48%. This is because Bihar is a predominantly agricultural state. The main crops grown in Bihar are rice, wheat, maize, and sugarcane.
The high percentage of net cultivated area in Bihar is a positive sign for the state’s economy. Agriculture is a major source of employment and income for the people of Bihar. The state government is taking steps to improve the productivity of agriculture and to increase the income of farmers.