the answer is not part I think
Answer: its b
Explanation: The bacterium that causes the bubonic plague is called yersinia pestis. It can survive in rodent populations and is spread to other mammals, including humans, through flea bites. ... The 1330s outbreak also spread west across Central Asia via traders using the Silk Road.
I’d say last option for trade opportunities
Answer:
Harsh discipline from management, low pay, and lack of job security.
