The ______ is a security app by Microsoft which is a built-in one into Windows OS that is designed to filter network data from your Windows system & block harmful communications or the programs which are initiating them.

A) Windows app blocker

B) Windows Security Essentials

C) Windows Firewall

D) None of the Above

Correct Answer : Windows Firewall

Explanation : The Windows Firewall is a security app by Microsoft which is a built-in one into Windows OS that is designed to filter network data from your Windows system & block harmful communications or the programs which are initiating them.