Answer: Checking account
Checking account is typically the MOST liquid account.
Explanation:
Checking account is a type of deposit account in a financial institution which allows a customer to withdraw and deposit. This account is a very liquid account which can be accessed with the use of checks, Automated Teller Machines (ATM), electronic debit and so on. It is also known as a cheque account. It has lower interest rate than a savings or money market account.