Answer:
D) technological advances have made it possible to make smaller, more powerful batteries.
Explanation:
In the middle ages Knights were those
celebrated and selected warriors whose sole purpose in life was to fight in
battles for their lords or train others to fight in that way. Lords were those
who gave these knights lands in return for their military services while
knights protected and fought for them, there were different rules in different
places, for example in some areas some knights had more than one lords while in
others a lord may hold many knight. It was always a struggle between lords to
keep and draw those knights who were braver and better than others.
I think its because it has more of a history and people know alot more about ancient egypt