Answer:
Money
Explanation:
Why not uh mean its it kinda obvious.
bi-focal eyeglasses, self-winding clock, parachutes, <span>the hot-air </span>balloon, <span>the </span>safety lock, steamboats, and <span>the </span><span>circular saw :)</span>
The correct answer is letter C
Explanation: The most closely associated with being psychologically healthy is focusing on the self not needing others.
I'm currently working on this test, but I know for a fact that the answer is C, production of these goods was made a state monopoly :D