The correct answer is: C. Real account

A joint venture account is a real account because it is an account that records the assets, liabilities, and equity of a joint venture. A joint venture is a business arrangement in which two or more parties agree to share the risks and rewards of a business enterprise. The joint venture account is used to track the financial performance of the joint venture and to report the financial results of the joint venture to the partners.

A nominal account is an account that records expenses and revenues. Nominal accounts are closed at the end of the accounting period and the balances are transferred to the retained earnings account.

A personal account is an account that records the assets, liabilities, and equity of an individual. Personal accounts are not closed at the end of the accounting period.

A dummy account is an account that is used to temporarily store data. Dummy accounts are not used to record financial information.