Which of the following options is a revenue expenditure?

A

Carriage of ₹7,500 spent on machinery purchased and installed.

B

Wages paid to own employees for building the foremen's offices.

C

Materials pmchased for extension to foremen's offices in the facto1y.

D

Incurred expenditure of ₹25.000 on varied advertisement campaigns undertaken yearly, on a regular basis, during the peak festival season.