Step 1: Understand the business model of newspapers.
Newspapers primarily earn revenue through advertisements. While companies and government sources may also contribute, advertisement revenue remains the dominant source.
Step 2: Analyze each option.
- (A) Companies: Incorrect. Companies may advertise in newspapers, but they are not the chief source of revenue.
- (B) Donation: Incorrect. Donations are not a primary source of income for newspapers.
- (C) Advertisement: Correct. The main revenue stream for newspapers comes from advertisements placed by companies, businesses, and government entities.
- (D) Government: Incorrect. While government advertising can contribute, it does not represent the primary source of revenue.
Step 3: Conclusion.
Advertisement revenue is the main source of income for newspapers.