Select the correct match of parameter declaration.

static Void main(string[] args)
{
    int a = 5;
    int b = 6;
    float c = 7.2f;
    math (ref a, ref b, ref c);
    Console.WriteLine(a + "  " + b + "  " + c);
}
static int math(/*add parameter declaration */)
{
    a += b;
    b *= (int)c;
    c += a * b;
    return 0;
}

A. ref int a, int b, ref float c

B. ref int a, ref float c, ref int b

C. ref int a, ref int b, float c

D. ref int a, ref int b, ref float c

Answer: Option D