A registered representative enters an order for a customer, and later notices that the wrong account number has been entered on the order ticket. The proper procedure is the: A registered representative should cancel the order and enter a new order with the proper account number B branch office manager must approve a change of account number on the existing order ticket Cofloor broker handling the order should be informed of the change prior to execution of the order D Purchase and Sales department must contact the customer and request reconfirmation before the order ticket can be changed