Why should an administrator configure Symantec Validation & ID Protection (VIP) with ClientNet?

Why should an administrator configure Symantec Validation & ID Protection (VIP) with ClientNet?

A. To enable Data Protection Policies
B. To enable Policy Based Encryption
C. To enable Transport Layer Security

D. To enable Two Factor Authentication

Reference: https://help.symantec.com/cs/EMAIL_WEB.CLOUD/CLOUDPORTAL/v97248373_v116856119/Informazioni-sul-controllo-dell?locale=EN_US