Which One of the Following Statements Is Correct Concerning a Cash

Which one of the following statements is correct concerning a cash management system that employs both lockboxes and a concentration bank account?

A) All customer payments must be submitted to a lockbox.
B) The party that collects the checks from the lockbox is responsible for recording the payments on the customer's accounts.
C) Payments received in a lockbox are transferred immediately to the concentration account.
D) A higher dollar return may be earned on short-term investments due to the cash management system.
E) The concentration account must be zeroed out on a daily basis.