Answer:
The correct answer is a) pruning
Explanation:
Pruning is a process which occurs in children between 3-16 year of age in which some unnecessary connection in brains weed out important connection are strengthened on the basis of child experience.
Pruning can start very early stage during development but the rapid pruning occurs between 3 to 16 years. In different sensitive periods different areas of brain undergoes in pruning. Pruning plays an important role in the development of the brain. Therefore the correct answer is a.