The correct answer is A. 89.20 lac hectares.
Bihar has a total geographical area of 94,163 square kilometers. Of this, 89.20 lac hectares (8,920,000 hectares) is under irrigation. This means that about 95% of the total geographical area of Bihar is under irrigation.
The irrigation capacity of Bihar is mainly due to the following factors:
- The state has a long and well-developed network of canals and reservoirs.
- The state receives a good amount of rainfall.
- The state has a large number of farmers who are engaged in agriculture.
The irrigation capacity of Bihar has helped to increase the agricultural production in the state. It has also helped to improve the livelihood of the farmers in the state.
The following are the options for the question:
- A. 89.20 lac hectares
- B. 90.30 lac hectares
- C. 91.30 lac hectares
- D. 92.11 lac hectares
Option A is the correct answer. Option B is incorrect because it is greater than the actual irrigation capacity of Bihar. Option C is incorrect because it is less than the actual irrigation capacity of Bihar. Option D is incorrect because it is not an option for the question.