Answer:
the population is too large
Explanation:
The direct democracy is a system in which everyone in the society that is eligible to vote should be taken in consideration when making any law or action. While this might be a good system for a very small population, it is not at all for large population. The United States have more than 300 million people, and it is extremely impractical and pretty much impossible that everyone's opinion can be taken in consideration when it comes to the politics of the country.
He had many reasons but he decided to drop the atomic bomb because he hoped that Japan would surrender. He also wanted to avoid having an invasion by the Japanese because it would be costly, difficult and terrible since the Japanese attacks were so brutal.
The answer I'd go with is D
It may be either serf or manor if none of these helps you than I apologies i'm not very good at history.
Women would have a lot of kids so they could work for the family