What information is required when adding the external VM Direct Engine?

What information is required when adding the external VM Direct Engine?
A . IP, NTP Server, FQDN, vCenter, ESX Host / Cluster, and DNS server
B . DNS server, vCenter AdminUser, FQDN, IP, and vCenter
C . vCenter, FQDN, NTP server, IP, and ESX Host / Cluster
D . FQDN, IP, vCenter, ESX Host / Cluster, and DNS server

Answer: D