Of the Following Statements About Internal Control,which One Is not

Multiple Choice

Of the following statements about internal control,which one is not valid?

A) No one person should be responsible for the custodial responsibility and the recording responsibility for an asset.
B) Transactions must be properly authorized before such transactions are processed.
C) Because of the cost/benefit relationship,a client may apply control procedures on a test basis.
D) Control activities ensure all fraud will be eliminated.