When a Broker Makes an Error on Payment Instructions the Model

When a broker makes an error on payment instructions The Model Code recommends that

A) The broker remains liable for the resulting difference for 3 full business days following the date of the transaction.
B) The broker remains liable until the error is discovered.
C) The broker is not liable at all.
D) The broker's liability should be limited as he is not in a position to directly rectify the situation.