A. <span>God’s deliverance of the plague to Egyptian firstborns
The plague that took the life of firstborn sons was the tenth of the plagues sent against Egypt, pressing them to let the Israelite people go free from their land. The Israelite people were spared from the plague by sacrificing a lamb and marking their doorposts with blood from the lamb that was sacrificed.</span>
The answer is D. A set of diary entries written by generals who planned strategies during world war II. This is a primary source which was written during that time period and so would be the best support for the authors' argument..