The correct answer is B. 23%.
Canal irrigation is a method of irrigation that uses canals to transport water from a source, such as a river or lake, to agricultural land. Canal irrigation is a major source of irrigation in India, and it is particularly important in the states of Bihar, Uttar Pradesh, and Punjab.
In Bihar, canal irrigation accounts for 23% of the total irrigated area. This is a significant amount, and it is a major factor in the state’s agricultural economy. Canal irrigation is a reliable source of water, and it is relatively inexpensive to operate. However, it can be a major source of water pollution, and it can also lead to waterlogging and salinization of the soil.
The other options are incorrect. Option A is incorrect because it is too low. Option C is incorrect because it is too high. Option D is incorrect because it is not a valid option.
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