Which BEST describes a pattern that people during the 14th and 15th centuries noticed in relation to outbreaks of the Black Death?
A) Outbreaks were concentrated among wealthy members of society.
B) Outbreaks were most likely to arise during summer and early fall.
C) Outbreaks only affected those whose jobs required them to travel.
D) Outbreaks only affected those who lived in rural areas outside cities.

During the 14th and 15th centuries, people began to notice that outbreaks were most likely to arise during the summer and early fall. Rats carried the Black Death, or bubonic plague. The disease spread to people when fleas carrying infected blood latched on to human hosts.

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

the u.s. department of labor is a cabinet-level federal agency that supports the american labor force. it has three overall functions. first, it protects the rights of workers and retirees. second, it provides job training. third, it provides statistics related to working, prices, and income.