Your network contains an Active Directory domain named contoso.com. The domain contains two servers
named Server1 and Server2 that run Windows Server
2016.
The Microsoft Advanced Threat Analytics (ATA) Center service is installed on Server1.
The domain contains the users shown in the following table.

You are installing ATA Gateway on Server2.
You need to specify a Gateway Registration account. Which account should you use?

A.
User1

B.
User2

C.
User3

D.
User4

E.
User5

F.
User6

G.
User7

H.
User8

Explanation:
https://docs.microsoft.com/en-us/advanced-threat-analytics/ata-role-groups

The user who installed ATA will be able to access the management portal (ATA Center) as members of the
“Microsoft Advanced Threat Analytics Administrators”
local group on the ATA Center server.