भाषा विकास का वह चरण जहाँ एक शिशु व्यंजन और स्वर ध्वनियों के संयोजन (जैसे 'बा-बा' या 'दा-दा') का उच्चारण करना शुरू करता है, कहलाता 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