Answer:
The correct answer is letter āDā.
The bubonic plague in the 14th century started in the Mongol Empire and spread via trade routes to all corners of Asia and the Middle East.
Step-by-step explanation:
The plague spread into Asia through Muslim merchants and entered Europe through the port of Venice. Then it spread through Italy and after through other European countries. This terrible plague from Asia spread in a short time, helped by the poor hygienic conditions, poor diet and ignorance about how to treat the disease. It is also known that the plague was a biological weapon of war used by the armies of the fourteenth century.
Bubonic plague is spread by the bite of infected fleas that inhabit the body and hair of mice and other rodents and also through body fluids of infected organisms. Bacteria enter the skin due to flea bites. Once inside the body, the bacteria travel through the lymph vessels to the lymph nodes that swell as a result.