Correct Answer: All of the above.

Solution :

1. Intermediate goods or not to be included in the national income.
2. Change the stock of goods will be included.
3. Imputed value of owners occupied houses should be included.
4. Sale and purchase of second hand goods is excluded.
5. Production of service for self consumption or not included. (Housewives, etc.)
6. Production of goods for self consumption will be included.

Hence, Option D is correct.