boolean logic help?

Question

C should be true is a is false and b is true. D should be true if a is true and b is false

 

using System;

namespace HelloWorld

{

class Program

{

static void Main(string[] args)

{

bool a = true;

bool b = false;

bool c, d;

c = (!a) && b;

d = b || a;

Console.WriteLine(c + ", " + d);

}

}

}