Explanation:

Here’s the thing, the two main components of a government budget are the Revenue Budget and the Capital Budget. Now let’s check your options:

- Expenditure Budget: This just shows where the money goes—it combines both revenue and capital spending. Not one of the two main components.

- Capital Budget : This is spot on. The capital budget covers all government receipts and payments of a capital nature, like loans, investments, or asset creation. It’s one of the core parts.

- Investment Budget: Not actually a formal category in the Indian budget. Investments are just a part of the capital budget.

- Income Budget: Doesn’t really exist. The right word here is “Revenue Budget,” which tracks earnings and regular spending.

So, the correct answer is Option 2—Capital budget.