According to the standards of conduct that apply to all employees of CBP$,$ employees must not use any CBP identification in a manner which may give the perception that they are using the identification for personal benefit or attempting to exert undue influence. In addition, CBP employees must not use any CBP identification to obtain, directiy or indirectly, a favor, reward, or preferential treatment for themselves or others, or to improperly enhance their own image.

From the information given above, it can be validly concluded that

A$)$ some employees who are prohibited from using CBP identification to obtain, directly or indirectly, a favor, reward, or preferential treatment for themselves or others are not CBP employees

B$)$ the only behavior that is prohibited for a CBP employee is using CBP identification in a way that gives the perception that the employee is using it to exert undue influence

C$)$ an individual cannot be both a CBP employee and be prohibited from using CBP identification to improperly enhance the individual's own image

D$)$ no CBP employee is authorized to use CBP identification in a way that gives the perception that the employee is using it for personal benefit

E$)$ all employees of agencies other than CBP are prohibited from using their agency identification in a way that gives the perception that they are using it for personal benefit