When Charlie was three years old, he fell off the slide at the playground and damaged the left hemisphere of his brain. Despite this injury, as Charlie grew older he still retained some of his language abilities because the right hemisphere of his brain took control over the language function. Which of the following mechanisms of brain damage repair is apparent in this example?
A. Collateral sprouting
B. Substitution of function
C. Neurogenesis
D. Lobotomy