What Is the Output of the Following Program?
#Include $\quad$

What is the output of the following program?
#include <iostream>
using namespace std;
class TestClass
{
$\quad$ private:
$\quad$$\quad$ int val;
$\quad$$\quad$ void showVal()
$\quad$$\quad$ { cout << val << endl; }
$\quad$ public:
$\quad$$\quad$ TestClass(int x)
$\quad$$\quad$ { val = x; }
};
int main()
{
$\quad$ TestClass test(77) ;
$\quad$ test.showVal() ;
$\quad$ return 0;
}

A) The program runs, but with no output.
B) 77
C) 0
D) The program will not compile.