What were the effects of the columbian exchange?

The "Columbian Exchange" -- as historians call this transcontinental exchange of humans, animals, germs and plants -- affected more than just the Americas. In China, for example, the new era began when sailors reported the sudden appearance of Europeans in the Philippines in 1570. The astonishing thing about this was that they had come across the ocean from the east.

explanation:

the president, prime minister, chief justice, speakers and ministers take their oath of office. the oath is taken in bengali

i would say your answer is a)

sorry if im wrong