World Flags Quiz for Windows 8

Developed by Mehdi Agab.
this application contains all world's flags. It gives you four choices about the countries's names and you have to choose one of theme which is corresponding to the contry's flag shown.
If you make the right choice the square's response will apears in green, but if your choice is wrong so the square's response apears in red.
For each right response you score raise by one.