Explanation:

- Option 1: Revenue deficit

- This occurs when the government's total revenue is less than its total expenditure, excluding capital expenditures.

- Option 2: Fiscal deficit

- This is the difference between the government's total expenditure and its total revenue (excluding borrowings).

- It's a measure of government borrowing.

- Correct Answer

- Option 3: Primary deficit

- This is the fiscal deficit minus interest payments on previous borrowings.

- It shows the government's financial health excluding interest obligations.

- Option 4: Deficit in taxes

- This is not a standard term in accounting or public finance.

- It might imply shortfall in tax collections.