Explanation:

- Demand Deposits are bank deposits that can be withdrawn at any time without any advance notice. These are also called chequable deposits because you can write a cheque against them or use them for electronic transfers.

- Saving Account Deposits are a type of demand deposit. They earn interest and offer easy withdrawal, but sometimes limit the number of transactions.

- Current Account Deposits are mainly for businesses, allowing unlimited transactions. They are also chequable deposits and a type of demand deposit.

- Fixed Account Deposits are not chequable. They are locked in for a certain period and can’t be accessed with a cheque.

The correct option is: Option 2 - Demand Deposits.