You need to design a method of communication between the IT and HR departments. Your solution must meet business requirements. What should you do？（）

A. Design a custom IPSec policy to implement Encapsulating Security Payload （ESP） for all IP traffic Design the IPSec policy to use certificate-based authentication between the two departments’ computers
B. Design a customer IPSec policy to implement Authentication Header （AH） for all IP traffic. Desing the IPSec policy to use preshared key authentication between the two departments’ computers
C. Design a customer IPSec policy to implement Encapsulating Payload （ESP） for all IP traffic. Desing the IPSec policy to use preshared key authentication between the two departments’ computers
Design a customer IPSec policy to implement Authentication Header （AH） for all IP traffic. Desing the IPSec policy to use certificate-based authentication between the two departments’ computer