Choose the correct type of variable scope for the following C# defined variables.

class ABC
{
    static int m;
    int n;
    void fun (int x , ref int y, out int z, int[] a)
    {
       int j = 10;
    }
}

A. m = static variable, n = local variable, x = output parameter, y = reference parameter, j = instance variable, z = output parameter, a[0] = array element

B. m = static variable, n = instance variable, x = value parameter, y = reference parameter, j = local variable, z = output parameter , a[0] = array element

C. m = static variable, n = instance variable, x = reference parameter, y = value parameter, j = local variable, z = output parameter, a[0] = array element

D. m = local variable, n = instance variable, x = reference parameter, y = value parameter, j = static variable, z = output parameter, a[0] = array element

Answer: Option B