You have a computer named Computer1 that runs Windows 7. You need to ensure that Computer1 canconnect to File Transfer Protocol (FTP) servers only while it is connected to a private network. What should you do?（）

A. From Windows Firewall with Advanced Security， create a new rule.
B. From the local Group Policy， modify the application control policies.
C. From Windows Firewall， modify the Allowed Programs and Features list.
D. From Network and Sharing Center， modify the Advanced Sharing settings.