I'd go with the last choice, D
The answer should be tractor. The tractor wasn’t invented until the end of the 18th century by John Froelich. But the medieval period ended way before the 18th century, so it couldn’t have been used. The other options are older and most likely used during that period to increase crop production.
I want to say C or D because the first great awakening was a period of Religious and Spiritual revelations, but im really leaning more towards D, honestly.
Well Communism is mainly used because the govt. doesn't want to pay a doctor 100k a year but only .5k a year. Communism is cancer. The correct answer is A
