You work as a senior administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers on the ABC.com network have Windows Server 2012 R2 installed. You are running a training exercise for junior administrators. You are currently discussing the Windows Firewall with Advanced Security feature. Which of the following is TRUE with regards to Windows Firewall with Advanced Security？（）
- AIt provides host-based，two-way network traffic filtering for a computer.
- BIt provides host-based，one-way network traffic filtering for a computer.
- CIt blocks unauthorized network traffic flowing into or out of the local computer.
- DIt only blocks unauthorized network traffic flowing into the local computer.
- EIt only blocks unauthorized network traffic flowing out of the local computer.