67.Which of the following statements are correct?

1.C# allows a function to have arguments with default values.
2.C# allows a function to have variable number of arguments.
3.Omitting the return value type in method definition results into an exception.
4.Redefining a method parameter in the method's body causes an exception.
5.params is used to specify the syntax for a function with variable number of arguments.
A.1, 3, 5
B.3, 4, 5
C.2, 5
D.4, 5
E.None of these
Answer: Option C