Which of the following is the correct definition of the term National Income ?

• A. National Income means the total amount of money Government earns only through direct tax collections every year.
• B. It is the total value of all sorts of stocks held by a country at a particular point of time
• C. This is the measure of the volume of commodities and services turned out during a given period counted without duplication.
• D. All the above5)None of these