Deduction of depreciation from Gross National Product is known as:

Correct option is A

The correct answer is:
A. Net National Product (NNP)

​Explanation:
When depreciation (also called capital consumption allowance) is deducted from the Gross National Product (GNP), the result is Net National Product (NNP).

Gross National Product (GNP):
Represents the total value of goods and services produced by a country's citizens, both domestically and abroad, during a specific period.
Depreciation:
Refers to the reduction in the value of capital assets due to wear and tear, obsolescence, or other factors.
Formula: NNP = GNP − Depreciation

Other Options Explained:

• B. Gross Domestic Product (GDP):
  Represents the total value of goods and services produced within a country's borders in a specific period.
  It includes contributions by both citizens and foreign entities operating within the country.
  
• C. National Income (NI):
  Refers to the total income earned by the nation, including wages, profits, rents, and interest.
  It is derived from NNP at factor cost:   National Income = NNP at Factor Cost
  
• D. Corporate Tax:
  A tax imposed on the profits of corporations, unrelated to GNP or depreciation.
  

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