I have done my research and checked my textbooks it is C
<span>The Mesopotamians made sails to harness the wind to move boats, and eventually sailed and traded as far away as what is now India.
It allowed them to trade good with faraway lands</span>
The midnight sun is a natural phenomenon that occurs in the summer months in places north of the Arctic Circle or south of the Antarctic Circle, when the sun remains visible at the local midnight.
