You need to design an administrative control strategy for Denver administrators. What should you do？（）

A. Create a security group named HelpDesk. Add the HelpDesk group to the Enterprise Admins group in both domains
B. Create a security group named HelpDesk. Add the HelpDesk group to the Domain Admins groups in both domains
C. Add the Domain Admins group in the litwareinc.com domain to the Domain Admins group in the contoso.com domain. Delegate full control of the litwareinc.com domain to the Domain Admins group in the contoso.com domain
D. Create a security group named HelpDesk for each office. Delegate administrative tasks to their respective OU or domain.Delegate full control of the contoso.com domain to the Domain Admins group from the litwareinc.com domai