The answer you might be looking for is:
The Fourth Estate was made up of peasants and city workers.
Why? The Fourth Estate also had the bourgeoisie, The bourgeoisie were wealthy but unlike the nobility had no inherited titles.
Well that would likely hinder the trade for such nation, like China. China has a TON of industry, and what would happen of it couldn't reach outside its borders? The economy would plummet! It would weaken every aspect of the nation.
Answer:
Pretty sure its A
Explanation:
This practice has since been stopped, because it is unhealthy, and causes blood clots sometimes