What should you do?

You have an Exchange Server 2013 organization named for Contoso.
A user named Admin1 is a member of the Domain Admins group.
Admin1 fails to synchronize a new Windows Phone device by using Exchange ActiveSync and receives an HTTP 500 error message. Admin1 successfully logs on to Outlook Web App and Outlook Anywhere.
You need to ensure that Admin1 can synchronize the new Windows Phone device by using Exchange ActiveSync.
What should you do?
A. Install a trusted root certificate on the Windows Phone device.
B. Create a new mobile device mailbox policy.
C. Enable permission inheritance on the Admin1 user account.
D. Disable permission inheritance on the Admin1 user account.

Correct Answer: C
Explanation/Reference:
Explanation:
Mobile device mailbox policy
In Microsoft Exchange Server 2013, you can create mobile device mailbox policies to apply a common set of policies or security settings to a collection of users.
After you deploy Exchange ActiveSync in your Exchange 2013 organization, you can create new mobile device mailbox policies or modify existing policies. When you install Exchange 2013, a default mobile device mailbox policy is created. All users are automatically assigned this default mobile device mailbox policy.
NOT A
It is possible to save a digital certificate to a file and install a digital certificate on a Windows Mobile phone.
Microsoft Exchange ActiveSync enables a variety of mobile phones to synchronize with an Exchange mailbox.
A digital certificate might need to be installed on a user’s mobile phone if Exchange ActiveSync is required to use Secure Sockets Layer (SSL) and your organization uses a certificate that isn’t from a trusted commercial certification authority (CA).
No mention of SSL in this question
NOT B
This is a permission inheritance issue.
NOT D
Need to enable permission inheritance not disable it or leave it as disabled.
C