Your network contains an Active Directory forest. The forest contains two domains named litware.com and exchange.litware.com and a Microsoft Exchange
Server 2019 organization.
The relevant servers are configured as shown in the following table.

EX01 and EX02 have Exchange Server 2019 installed and are in a database availability group (DAG) named DAG01.
You need to add in additional server to DAG01.
Which server should you add?