The correct answer is C. Investment.
A credit balance is a balance that is greater than the debit balance. In accounting, a credit balance is a positive balance in an account. This means that the amount of money that is owed to the company is greater than the amount of money that the company owes.
Cash, bank, and stock are all assets. Assets are items that a company owns and that have value. The balance of an asset account should always be a debit balance. This is because assets are things that the company owns, and the company owes money to the owners of the assets.
Investments are assets that a company owns with the intention of selling them for a profit in the future. The balance of an investment account can be either a debit balance or a credit balance. This is because investments are assets, but they are not always sold for a profit. If an investment is sold for a profit, the balance of the investment account will be a credit balance. If an investment is sold for a loss, the balance of the investment account will be a debit balance.
Therefore, the only item on the list that can have a credit balance is investment.