In the following C# code, which query will work according to the set of code?

class Program
{
    static void Main(string[] args)
    {
        int[] nums = { 1, -2, 3, 0, -4, 5 };
        int len = /*_________________ */
        Console.WriteLine("The number of positive values in nums: " + len);
        Console.ReadLine();
    }
}

A. from n in nums where n > 0
select n

B. from n in nums where n > 0
select n.Count()

C. (from n in nums where n > 0
select n).Count();

D. Both "from n in nums where n > 0 select n.Count()" & "(from n in nums where n > 0 select n).Count();"

Answer: Option C