Your company has a hybrid deployment of Office 365.
You need to set the authentication method of the federation servers to forms-b
ased authentication.
What should you do?
A. Modify the Web.config file in the %systemroot%\inetpub\adfs\ls directory.
B. Modify the Global.asax file in the %systemroot%\inetpub\adfs\ls directory.
C. From the AD FS 2.0 Management console, add a relaying
party trust.
D. From the AD FS 2.0 Management console, add a claims provider trust.
References: http://msdn.microsoft.com/en-us/library/xdt4thhy.aspx