__________ is an extension of profit & loss A/c in case of partnership firm.

Profit & Loss appropriation A/c

The correct answer is Option (4) - Profit & Loss appropriation A/c

Profit and Loss Appropriation Account is merely an extension of the Profit and Loss Account of the firm. It shows how the profits are appropriated or distributed among the partners. All adjustments in respect of partner’s salary, partner’s commission, interest on capital, interest on drawings, etc. are made through this account.