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

• If there is a custom attribute BugFixAttribute then the compiler will look ONLY for the BugFix attribute in the code that uses this attribute.
• To create a custom attribute we need to create a custom attribute structure and derive it from System.Attribute.
• To create a custom attribute we need to create a class and implement IAttribute interface in it.
• If a BugFixAttribute is to receive three parameters then the BugFixAttribute class should implement a zero-argument constructor.
• The CLR can change the behaviour of the code depending upon the attributes applied to it.