C and d have to do with the upper classes and how they (mostly) utilized labor. Populists were more concerned with how to make things work for them (a bit cynical on my part).
The progressives (particularly women and labor leaders) were very concerned about working conditions and how to improve them.
B<<<< answer
<span>Before launching the craft on 11 April 1970, several experiments wer made in oder better knowlegde and experience to be gained for the mission. The experiments included launching free-flying vehiclesto simulate landing on the Moon's surface. The Astronauts made simulations inside NASA facilities to be better prepared for the space.</span>
The answer is.... American federation of labor ! Check the photo... its the actual answer! Hope this helped:) ✌️
Answer:
Many historians consider the printing press as the most important invention in history because from its creation it allowed the development and expansion of knowledge through the printing of books. Until that moment, knowledge, science and other theories that generated technological, economic, political and social development could not be broadly transmitted, because the books were written by hand by the monks, who exercised a kind of censorship over any question that was against religious principles.
For this reason, the printing press removed the monopoly on knowledge from religion, while increasing the ease of transmitting said knowledge, exponentially increasing the speed of human development.
New inventions would not have been possible without them willing to risk their money to help develop and implement their inventions.
Hope this helps
