The Brains of Taxi Drivers in London,England,differ from the Brains

Multiple Choice

The brains of taxi drivers in London,England,differ from the brains of other people.This can be attributed to

A) brain plasticity,because brains have the ability to alter their structure and function as a result of learning and/or experience.
B) the hippocampus of London taxi drivers increasing with age.
C) accident of birth;the people driving taxis in London were born with a smaller hippocampus,which then increased in size over time.
D) A and B