You work as the enterprise exchange administrator at Company.com.The Company.com network consists of a single Active Directory domain named Company.com.Company.com has an Exchange Server 2010 organization.Company.com has merged with another company.The users at Company.com have complained that they are not able to share contacts with the users in the merge company.However， they can share free/busy information.The users at Company.com need to share contacts.What should you do？（）

• A、You should consider changing the EWS virtual directory.
• B、You should consider changing the Federation Trust.
• C、You should consider changing the Organizational Relationship.
• D、You should consider changing the default sharing policy.