Open-source software is licensed through the GNU General Public License Agreement, therefore the Answer is letter A.
It's called a constructor function, but it's name is the same as the class' name.
A CD Player would be an example of a compound machine. A compound machine is one which contains several simple machines.
Simple machines are the following: Levers, pulleys, screws, and inclined planes.
I don't think that a screw or a pulley by itself could play a CD =P
Your answer is choice B, Compound Machine.
Hope that helped! =)
Need more information we dont know what your talking about.<span />
