There are 50 states in the United States of America. But if you were asking for the whole entire world , right now there is probably around 300 states in the whole world, I think.
Plasticity or brain plasticity refers to the brain's capacity to change throughout life. It is centered around the notion that many aspects in a person's brain can suffer alterations even through adulthood. Basically it defies the idea that we are "hard-wired" as humans. Learning is appointed as a main contributor to the increase of brain plasticity, this is largely due to the brain's capacity to form new connections (synapses) between neurons (brain cells) when presented with new scenarios, it is consistently reorganizing itself, creating and pruning (removing) synapses.
Answer: I would say A is the correct answer
Explanation: