5. Commercial bills may be classified as bank bills or non-bank bills. Which of the following is correct? Select one: a. The classification depends on whether the drawer of the bill is a bank or a non-bank. b. A bill accepted by a building society or an investment bank is a bank bill. C c. A bill that is accepted or endorsed by a bank is a bank bill. d. The classification depends only on whether the acceptor of the bill is a bank or a non-bank. C