What should be part of a comprehensive network security plan（）。
- AAllow users to develop their own approach to network security
- BPhysically secure network equipment from potential access by unauthorized individuals
- CEncourage users to use personal information in their passwords to minimize the likelihood of passwords being forgotten
- DDelay deployment of software patches and updates until their effect on end-user equipment is well known and widely reported
- EMinimize network overhead by deactivating automatic antivirus client update