Lockbox Plan Is

lockbox plan is

A) used to protect cash, i.e., to keep it from being stolen.
B) used to identify inventory safety stocks.
C) used to slow down the collection of checks our firm writes.
D) used to speed up the collection of checks received.
E) used primarily by firms where currency is used frequently in transactions, such as fast food restaurants, and less frequently by firms that receive payments as checks.