No member of the Richardson Theater Group is both a performer and an administrator. Since Leon and Marta are both members of the Richardson Theater Group but neither is an administrator, it follows that both are performers. Which one of the following arguments displays a flawed pattern of reasoning most similar to that in the argument above? ['Not all of the employees of the Tedenco Company are salaried employees of that company. Since Mr. Lopez and Ms. Allen are both salaried employees of the Tedenco Company, it follows that they are not the only employees of the Tedenco Company.', 'No corporate attorney represents both the Dumone Company and the Tedenco Company. Since Ms. Tseung is a corporate attorney who represents the Dumone Company, it follows that she does not also represent the Tedenco Company.', 'No company can have its headquarters in both Canada and Mexico. Since neither the Dumone Company nor the Tedenco Company has its headquarters in Mexico, it follows that both have their headquarters in Canada.', 'No member of the board of directors of the Dumone Company is also a member of the board of directors of the Tedenco Company. Since neither company has fewer than five board members, it follows that both boards together include at least ten members.']