Dr. V.K.R.V. Rao's estimation of national income for 1931-32 is considered the first scientific estimate. Which of the following methodological approaches did he introduce to resolve the double-counting and sector-classification issues in India?

Options:

• A: He divided the economy into primary, secondary, and tertiary sectors and applied the income method to all of them.
• B: He divided the economy into two parts (agricultural and corporate/urban) and applied the product method to agriculture and the income method to the corporate/urban sector.
• C: He used the expenditure method exclusively across all rural and urban households.
• D: He relied entirely on the census data of occupations and applied a uniform wage rate across all provinces.

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