C# basics - true false questions

1. If a class is declared as abstract it is not possible to instantiate it - True
   
   
2. If any method in a class is abstract, then that implies the class itself should be abstract - True
   
   
3. Interface members are always public and cannot be declared as virtual or static - True
   
   
4. Like COM interfaces C# interfaces also have to use GUIDs as identifiers - False
   
   
5. Using the enum names in code makes code more readable - True
   
   
6. Structures in C# are value types - True
   
   
7. You can derive an interface from itself - False