Datatypes - General Questions

Which of these is a reference type?

What is the output of the following program?

var s = "text";
Console.WriteLine(s.GetType().Name);

Which type should be used for exact monetary calculations?

What is the size of an int in C#?

What is the output of the following program?

double d = 9.99;
int i = (int)d;
Console.WriteLine(i);