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

class A 
{
    public int i;
    protected int j;
}    
class B : A 
{
    public int j;
    public void display() 
    {
        base.j = 3;
        Console.WriteLine(i + " " + j);
    }
}    
class Program
{
    static void Main(string[] args)
    {
        B obj = new B();
        obj.i = 1;
        obj.j = 2;
        obj.display();     
        Console.ReadLine();
    }
}

A. 2 1

B. 1 0

C. 0 2

D. 1 2

Answer: Option D