Answer:
C. Many millions of people died from the plague in 1348.
Step-by-step explanation:
From Bubonic plague article, it was concluded that the plague known as Buboni plague or Black Death caused the death of about 30% to 60% of Europe’s population between the year 1347 and 1351. However, death rates differs from region to region.
Hence, it was recorded that some areas saw mortality of 80% or higher, this implied that millions of people died during the plague.
Also from the map, it shows many millions of people died from the plague in 1348, notably in the mid of the year 1348, as represented by the legend of the map.