You work as the IT professional in an international company which is named wiikigo. You are experienced in implementing and administering a network operating system. You are specialized in configuring IP addressing and services, configuring name resolution and network access and so on. You are in charge of a domain controller that runs windows server 2008 and the DNS server role. The dns server hosts an active directory-integrated zone for your domain. You need to provide a user with the ability to manage records in the zone. But the user must not so what action should you perform?（）
- AThe user permissions on the zone should be granted.
- BThe user permissions on the DNS zone should be granted.
- CThe user should be added to the DNSUpdateProxy Global security group.
- DThe user should be added to the DNSAdmins domain local security group.