Explanation:

- Personal Account: This relates to individuals, companies, or organizations, representing people you can interact with in transactions.

- Real Account: Includes all tangible and intangible assets. Goodwill is an intangible asset, hence classified under this account type. This account deals with assets and liabilities.

- Nominal Account: Focuses on revenues, expenses, profits, and losses. These accounts are closed at the end of each accounting period.

- Expense Account: A subset of nominal accounts, representing costs incurred for business operations.

Correct Answer: Real Account