Q.- Which one is included in national income ?
     (a) Winning lottery
     (b) Milk purchase by a dairy shops
     (c) National debt interest
     (d) None of these.

Dear Student,

The correct answer is Option D. Winning a lottery does not add to the flow of goods and services in the economy. Milk purchased by a dairy shop is not a final good as it is for reselling. National Debt Interest is the interest paid on loans taken by the government to meet its consumption purposes. So, these items cannot be considered while calculating national income.

​​​​​​Regards.