बच्चे मुख्य रूप से सामाजिक अंतःक्रिया (social interaction) के माध्यम से भाषा सीखते हैं, इस विचार का पुरजोर समर्थन किस सिद्धांतकार ने किया है?

Vocabulary growth during pre-school years is largely supported by:

Arrange the following stages of language development in their correct chronological sequence: (K) Production of Sound (L) Recognition of Sound (M) Production of Words and Sentences (N) Use of Written Language (O) Final Stage of Mastery in Language Development