<span>The correct answer is obtaining the compass from Asia. By the fifteenth century, the Arabs had significantly improved the compass, making it a much more valuable tool for navigation. In addition, many Europeans hoped that exploration would find new, undiscovered potential sources of wealth.</span>
It rose from the ruins of Ancient Greek
Okay, well a plow is used for farming. Basically the Sumerian plow is like a modern day tractor. If you have ever heard the term, "to plow the fields", you would know and immediately think of a tractor.
after reading this i think that the answer is B, because their perspective is made by personal experiences