Which of the following is a prerequisite for installation of the Veeam plug-in for vSphere Web Client?

A.
Veeam ONE Monitor

B.
Veeam Backup & Replication

C.
Veeam Management Pack for System Center

D.
Veeam Backup Enterprise Manager

Explanation:
https://helpcenter.veeam.com/docs/backup/em/web_plugin_get_started.html?ver=95