Explanation:

Let’s break down the terms for “Undistributed Profits”:

- Savings of private corporate sector just means the profits companies keep instead of handing out as dividends. They save it for growth, emergencies, or future projects.

- Reserves and Surplus sit on a company’s balance sheet. Basically, it’s the pool of profits set aside for things like expansions, unknown risks, or bonuses.

- Retained Earnings is a bookkeeping way to say profits *not* mailed out to shareholders. These profits are instead hoarded for later use.

- All of these—yeah, these words are used interchangeably in corporate finance and they all connect back to the profits the company keeps.

So, the correct answer is:

Option:4- All of these