The most critical period of acquisition and development of language is 

Options

A. pre-natal period
B. early childhood
C. middle childhood
D. adolescence

Answer

B

Explanation

Early childhood stage is the foundation period of life covering 2-6 years of our life.
  It is a period of rapid-physical, mental, emotional, social and language development of child. Early childhood also said to be most critical period of acquisition and development of language.
  Specifically for a child, most of the development takes place in three stages - Early childhood (birth to 8 years), middle childhood (6 to 12 years) and adolescence.