Vocabulary of 1.5 year old child is –
**Core Concept**
The vocabulary of a 1.5-year-old child is an essential aspect of their language development. At this stage, children typically begin to understand and use around 50-100 words to communicate their needs, wants, and emotions. This rapid expansion of vocabulary is a critical milestone in their cognitive and social development.
**Why the Correct Answer is Right**
The correct answer indicates that a 1.5-year-old child's vocabulary is typically around 50-100 words. This is because at this stage, children are beginning to understand and use simple words to communicate, such as names of family members, common objects, and basic actions. Their vocabulary is expanding rapidly as they learn new words through interaction with their environment and caregivers. This process is facilitated by the maturation of the left hemisphere of the brain, particularly the Broca's area and Wernicke's area, which are responsible for language processing.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it is too low for a 1.5-year-old child's vocabulary, which is typically around 50-100 words.
* **Option B:** This option is incorrect because it is too high for a 1.5-year-old child's vocabulary, which is still developing rapidly but not yet at this level.
* **Option D:** This option is incorrect because it is too vague and does not provide a specific estimate of a 1.5-year-old child's vocabulary.
**Clinical Pearl / High-Yield Fact**
A child's vocabulary expands rapidly between 18 and 24 months of age, with an average of 5-10 new words learned per day. This is a critical period for language development, and any delays or deficits in vocabulary acquisition should be closely monitored by pediatricians and speech therapists.
**Correct Answer: C. 50-100 words.**