Your company hires 10 new employees. You want the new employees to connect to the main office through a VPN connection. You create new user accounts and grant the new employees the Allow Read and Allow Execute permissions to shared resources in the main office. The new employees are unable to access shared resources in the main office. You need to ensure that users are able to establish a VPN connection to the main office. What should you do（）
- AGrant the new employees the Allow Full control permission.
- BGrant the new employees the Allow Access Dial-in permission.
- CAdd the new employees to the Remote Desktop Users security group.
- DAdd the new employees to the Windows Authorization Access security group.