Explanation:

- Option 1: Cash

- Cash is undoubtedly a balance sheet item.

- It represents liquid assets available to the firm.

- Option 2: Rent expenses

- Rent expenses appear on the income statement, not the balance sheet.

- It reflects the cost incurred for leasing property during a period.

- This is not on the balance sheet.

- Option 3: Building

- Buildings are long-term assets recorded on the balance sheet.

- They reflect the physical infrastructure owned by the company.

- Option 4: Goodwill

- Goodwill arises from business acquisitions and is an intangible asset.

- It also forms part of the balance sheet under assets.