Which tool should you use?

Your company has a hybrid deployment of Office 365.
You need to identify which certificate is used for token signing between the on-premises environment and Office 365.
Which tool should you use?

A.
the Exchange Management Console

B.
the AD FS 2.0 Management console

C.
the Active Directory Domains and Trusts snap-in

D.
the Office 365 portal

E.
the Certificates snap-in

Explanation:
http://technet.microsoft.com/en-us/library/gg557729%28v=ws.10%29.aspx