Which of the following is NOT included in 'Operating Surplus'?

Correct option is D

 The correct answer is (d) Wages in cash.
Operating Surplus is a term used in national accounts, representing the excess of revenue over the costs incurred in production. It typically includes components such as:
 Rent: Payment for the use of land or property.
 Profit: Earnings after all expenses have been deducted from revenue.
 Interest: Payment received for the use of borrowed money or other financial assets.
However, Wages in cash are not included in Operating Surplus. Instead, wages are considered a part of compensation of employees, which is accounted for separately in the production costs. Operating Surplus essentially measures the earnings before wages and other employee compensation are subtracted but after all goods and services used in production are accounted for.