I think it's B
Hope this helps...
Answer:
The Columbian exchange, also known as the Columbian interchange, named after Christopher Columbus, was the widespread transfer of plants, animals, culture, human populations, technology, diseases, and ideas between the Americas, West Africa, and the Old World in the 15th and 16th centuries.The impact was most severe in the Caribbean, where by 1600 Native American populations on most islands had plummeted by more than 99 percent. Across the Americas, populations fell by 50 percent to 95 percent by 1650. The disease component of the Columbian Exchange was decidedly one-sided.
The reason why U.S dropped an atomic bomb on japan was due to world war two even though the they lost the wouldn't surrender at all the choose to fight so the y had a plan
I would say that the probable order of the cartographic events would be 1) a first attempt at a world map in the 5th and 6th centuries 2) the travels of Marco Polo 3) the Mercator projection in the mid 1500's and finally the 4) Robinson projection in 1963.
