What will be the output of the following C# code?

static void Main(string[] args)
{
   int a = 5;
   fun1 (ref a);
   Console.WriteLine(a);
   Console.ReadLine();
}
static void fun1(ref int a)
{
    a = a * a;
}

What is a class in C#?

A. A blueprint for creating objects

B. A method in C#

C. A variable in C#

D. A data type in C#

Which keyword is used to create an object of a class in C#?

A. create

B. instance

C. object

D. new

What is an object in C#?

A. A method in C#

B. A variable in C#

C. An instance of a class

D. A data type in C#

What is the access specifier that allows members of a class to be accessed from any other class in the same assembly in C#?

A. public

B. private

C. protected

D. internal