You are the network administrator for Wingtip Toys. The network consists of a single Active Directory domain named wingtiptoys.com. The Active Directory-integrated DNS zone named wingtiptoys.com is replicated to all domain controllers. Only domain controllers have the DNS service installed.The network management department requires all hosts in the manufacturing division to be registered in the DNS namespace manufacturing.wingtiptoys.com. The manufacturing.wingtiptoys.com namespace does not exist on any of the DNS servers.You need to add support for the manufacturing.wingtiptoys.com namespace to all the existing DNS servers. To reduce administrative overhead， you want to find a solution that will not require reconfiguration if DNS servers are added to the domain in the future.  What should you do？（）

• A、Create a subdomain named manufacturing in the wingtiptoys.com zone.
• B、Create a delegation named manufacturing in the wingtiptoys.com zone.
• C、Create a stub zone for manufacturing.wingtiptoys.com.
• D、Create a primary zone for manufacturing.wingtiptoys.com that is not Active Directory-integrated.