D)the water gave Romans access to many other centers of trade,including the Silk Road from Asia and cities in Northern Africa
B. A house keeper wounded fall under the category of domestic and personal services because they are not professional like maids or butlers.
If you meant Denton Cooley, he was the first person to implant an artificial heart in 1969.
cost of the Journey is the correct answer.
Many settlers migrated from Europe who were called western settlers. They face many obstacles which encountered on the waterways as well as during their settlement. The cost of journey was not an obstacle for them as it was very easy and convenient for them.
