下列关于人际传播的描述不正确的是（）

A.人际传播一般不需要任何非自然媒介

B.人际传播的速度较快，信息量相对较大

C.人际传播的交流双方可以互为传播者和受传者

D.人际传播有益于提高传播的针对性

E.人际传播简便易行，交流可较随意地进行

With hundreds of millions of electronic transactions taking place daily, businesses and organizations have a p incentive to protect the (66) of the data exchanged in this manner, and to positively ensure the identities of those involved in the (67) . This has led to an industry-wide quest for better, more secure methods for controlling IT operations, and for deploying p security (68) deeply and broadly throughout networked infrastructures and client devices. One of the more successful concepts to engage the imaginations of the security community has been the development of standards-based security. (69) that can be incorporated in the hardware design of client computers. The principle of encapsulating core security capabilities in (70) and integrating security provisions at the deepest levels of the machine operation has significant benefits for both users and those responsible for securing IT operations.

A．devices

B．transactions

C．communications

D．businesses