I’m pretty sure the answer is B
George Washington was the most responsible for keeping the colonial army together.
Caravel:The Caravel was a ship that had many uses. These ships were from small to medium. They could be used as cargo ships, warships, patrol or dispatch boats and also pirate ships. They were mainly used for fishing. The Caravel was from 50 to 200 tons. These ships were cheap and you could get them in shape for working very easily. They were known for their speed and maneuverability. So these ships were used by explorers to explore.
Galleon:This ship came was developed/came in use during the 16th century. The Galleon was developed from ships such as the Caravel and Carrack. These ships were known for their ability to change during different circumstances. So if you had a Galleon and you were in times of peace you could use it to do trading, fishing, etc. If you were in times of war you could convert it and make it a war ship. These ships had more ribs and bracings which helped them withstand gunfire. So these ships were good because they were fast and could easily convert/change as per the circumstances.
The Nile River was a body of water that they severely needed because, both sides of Egypt had deserts on them.
It was "aqueducts and roads" that were used to help unify China during the Qin dynasty since these brought the most people together from far away.
