This kind of horrific...just a warning. Kids would be given dog tags as a sign of identification. At that time, the nuclear war was taking place. Parents would have their kids wear dog tags so that if they died, they would be able to identify the children's bodies.
Answer:
C. ( Colombian Exchange )
As Europeans traversed the Atlantic, they brought with them plants, animals, and diseases that changed lives and landscapes on both sides of the ocean. These two-way exchanges between the Americas and Europe/Africa are known collectively as the Columbian Exchange.
I think it's B. Not 100% sure but I'm about 80% sure.
