Your network contains an Active Directory domain named contoso.com.Your company has an enterprise root certification aut

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Your network contains an Active Directory domain named contoso.com.Your company has an enterprise root certification authority (CA) named CA1.You plan to deploy Active Directory Federation Services (AD FS) to a server namedServer1.The company purchases a Microsoft Office 365 subscription.You plan to register the company's SMTP domain for Office 365 and to configure single sign-on for all users.You need to identify which certificate is required for the planned deployment.Which certificate should you identify?

A. a server authentication certificate that is issued by a trusted third-party root CA and that contains the subject name serverl.contoso.com
B. a self-signed server authentication certificate for server1.contoso.com
C. a server authentication certificate that is issued by a trusted third-party root CA and that contains the subject name Server1
D. a server authentication certificate that is issued by CA1 and that contains the subject name Server1