The answer is d. using their muscles
Well, several ideas that developed during the renaissance became the basic Ideas of Scientific Revolutions.
For example, the Cart That's created by the Romans became the basic idea in designing the first Cars, a lot of painters such as Da Vinci, created a lot of technological designs for weapons, vehicles, and buildings, etc.
He re-hauled and rewrote the criminal and civil procedure codes because the old ones were archaic and represented old times. The codes were more accessible to people and modernized according to enlightenment philosophies. He also introduced codes about education which resulted in numerous new schools and universities being opened.
