Explanation:

- Prepaid Expenses: These are payments made for goods or services to be received in the future. They are considered current assets as they will benefit the business within a year.

- Inventory: Represents raw materials, work in progress, and finished goods that a company intends to sell. It's a current asset because it's expected to be sold within a year.

- Goodwill: This is an intangible asset arising when a business is purchased for more than the value of its assets. It is not a current asset as it cannot be easily converted into cash within a year.

- Bills Receivable: These are amounts owed to a business and expected to be settled within a year, making them current assets.

Correct Answer: Option 3 - Goodwill