The answer is: A.through competition between businesses.
According to smith, businesses would always wanted to obtain as money costumers as possible. During the process of competition, they would keep trying to provide the customers with the cheapest price possible. Eventually, the power of supply and demand would bring the price of the product into a fair point.
Http://wdb.sad17.k12.me.us/teachers/bburns/com/documents/economy/adam_smith.html
maybe this website can help <3
(information is not mine, credit to original :) )
<span>In the United States, the president, as Commander-in-Chief, has final control over the military, although the Congress retains an important measure of control through the budget process.</span>
Answer/Explanation:
They lived in caves which were made out of hand cut stone blocks on cliffs.