What should you recommend?

HOTSPOT
You have an Exchange Server 2013 organization and a Microsoft SharePoint Server 2013 server farm.
You plan to use a SharePoint eDiscovery Center.
You need to recommend which component must be deployed before you can use the SharePoint
eDiscovery Center for In-Place eDiscovery.
What should you recommend? To answer, select the appropriate options in the answer area.

Answer: See the explanation

Explanation:
Target 1: Exchange Web Service (EWS) Managed API
Target 2: SharePoint front-end web servers

Ensure that the Exchange Web Service managed API is installed on every front-end
server that is running SharePoint Server 2013.
Configure eDiscovery in SharePoint Server 2013
https://technet.microsoft.com/en-us/library/fp161514.aspx