Which of the following best explains the changes in cultural exchange that developed during the twentieth century?(1 point)
Responses
a.The start of the Industrial Revolution in the twentieth century allowed cultural exchange to happen more rapidly.
b.During the twentieth century, cultural exchange happened more frequently than it ever had in history.
c.Smartphone technology made global cultural exchange more possible than it had ever been.
d.The Columbian Exchange of the twentieth century brought civilization to people who had never had it.