You need to implement Office 365 authentication.
What should you do?
A. Create a two-way trust between proseware.com and adatum.com.
B. Deploy an AD FS proxy for the proseware.com domain.
C. Create an AD DS domain named proseware.com and join the AD FS servers to the proseware.com domain.
D. Add adatum.com and proseware.com as Office 365 SSO domains and use the SupportMultipleDomain parameter.
