Which of the following statements is correct about the C#.NET code snippet given below? class Sample { private int i; public Single j; private void DisplayData() { Console.WriteLine(i + " " + j); } public void ShowData() { Console.WriteLine(i + " " + j); } }

• j cannot be declared as public.
• DisplayData() cannot be declared as private.
• DisplayData() cannot access j.
• ShowData() cannot access to i.
• There is no error in this class.