Correct option is B
National Income generated by agriculture is typically calculated using the Output Method. This method calculates the value of all goods and services produced by the agricultural sector within a specific time period. It focuses on the total value added at each stage of the agricultural production process.
Output Method: Measures total value of agricultural production.
Income Method: Calculates national income by summing all incomes earned by individuals and businesses.
Expenditure Method: Focuses on the total expenditure on goods and services produced.