Explanation

Box 1: ASP1 ASP3
Asp1, ASP3: ASP.NET Core apps can be hosted both on Windows or Linux.
Not ASP2: The region in which your app runs is the region of the App Service plan it's in.
Box 2: ASP1
ASP.NET apps can be hosted on Windows only.
Reference:
https://docs.microsoft.com/en-us/azure/app-service/quickstart-dotnetcore?pivots=platform-linux
https://docs.microsoft.com/en-us/azure/app-service/app-service-plan-manage#