"<span>C.Under free enterprise, merchants were able to
conduct unrestricted international trade. Under mercantilism,
international trade was restricted" is the best option, but there were other differences as well. </span>
The<u> Iron Age</u> was a pre-historic stage in which iron was widely used to make tools and weapons.
<h3>What was the metal used for in the Iron Age?</h3>
Iron was an excellent tool for making tools, tools, and utensils because it could be hammered and did not need to be carved. Hammering the iron was called as 'smithing'.
The Iron Age helped many countries to become more technologically advanced.
During the Iron Age, people throughout Europe, Asia, and parts of Africa began to make tools and weapons in iron and steel.
Thus, the correct option is Option a. Iron age.
To learn more about Iron age, refer:
brainly.com/question/13754469
