<prompt> A child has a vocabulary of 46 words however the main mode of communication and social interaction continues to be non-verbal what is the most likely developmental age of the child12 months15 months18 months24 months  <response>: Vocabulary of 4-6 words in addition to jargon is achieved by 15 months of age. However 20 of speech is understood and hence main mode of communication continnues to be non-verbal. 