right$-$handed coordinate system?

A$.$Left$-$handed coordinate system B$.$Right$-$hand coordinate system

C$.$ You can switch between

$1)$There are many kinds of computer game. Please write out $4$ of them.$(8$ points$)2)$ In the window of Project Asset, when you create a new C# scripts in Unity$3$D$,$ what functions are included in this new script?$(4$ points$)$

$3)$ In Unity$3$D$,$ when you create a new $3$D Scene in Unity,what GameObjects have been created in the scene window?$(4$ points$)$

$4)$What functional modules are included in the Unity game engine? $(8$ points$)$