Which of the following, if true, most seriously undermines the attorney's argument in defense of TEB? A. "Wrongdoing" is defined in TEB corporate policies as "any activity by a TEB employee that defrauds TEB." B. TEB has instituted what it calls "customer friendly" policies of responding to every complaint customers make C. The government is not TEB's sole client, nor even its major client. D. Defrauding the government would have to involve more than one employee of any company that did so. E. Those who have accused TEB of not doing enough to discourage its executives from defrauding the government have themselves been government employees.