Which of the following statements are correct about Attributes in C#.NET?

1. On compiling a C#.NET program the attibutes applied are recorded in the metadata of the assembly.
2. On compilation all the attribute's tags are deleted from the program.
3. It is not possible to create custom attributes..
4. The attributes applied can be read from an assembly using Reflection class.
5. An attribute can have parameters.

[WebService (Name = "CuriousTab", Description = "CURIOUSTAB WebService")] 
class AuthenticationService: WebService
{ /* .... */}

<WebService ( Name : "CuriousTab", Description : "CURIOUSTAB WebService" )> 
class AuthenticationService: inherits WebService
{ /* .... */}

<WebService ( Name = "CuriousTab", Description = "CURIOUSTAB WebService" )> 
class AuthenticationService: extends WebService
{ /* .... */}

[WebService ( Name := "CuriousTab", Description := "CURIOUSTAB WebService")] 
class AuthenticationService: inherits WebService
{ /* .... */}

1. Custom attribute cannot be applied to an assembly.
2. [assembly: Tested("Sachin", testgrade.Good)]
3. [Tested("Virat", testgrade.Excellent)]
   class customer { /* .... */ }
4. Custom attribute cannot be applied to a method.
5. Custom attribute cannot be applied to a class.

1. An attribute can be inspected at link-time.
2. An attribute can be inspected at compile-time.
3. An attribute can be inspected at run-time.
4. An attribute can be inspected at design-time.

< Serializable() > class sample
{ /* ... */ }

(Serializable()) class sample
{ /* ... */ }

[ Serializable() ] class sample
{ /* ... */ }

Serializablef) class sample
{ /* ... */ }