The lifetime of an object if a reference to its field was passed to a static class?

Question

Programming

Here is an example code:

static class A
{
        static D d;
        void static Func1()
        {
                B b = new B();
                d = b.Func2();
        }
        void static Main()
        {
                Func1();
                GC.Collect();
                System.Threading.Thread.Sleep(10000);
                //b is removed?
        }
}

class B
{
        public D d = new D();
        public D Func2()
        {
                return d;
        }
}

class D
{
}

Will object b be removed from the heap after garbage collection if one of its fields is referenced by a static object?

Answer 1

Will. The link goes not to the field of the object, but to the object that once lay in this field. After cleaning, only object d will remain. Now, if in d during construction there was a reference to b as a "parent", then b would also remain.