Vocabulary of a 2-year-old child is:
**Core Concept**
The vocabulary of a 2-year-old child is a key aspect of language development, reflecting their ability to communicate effectively. At this stage, children typically have a limited but growing vocabulary. Language development is a crucial part of pediatric assessment, as delays can indicate developmental issues.
**Why the Correct Answer is Right**
A 2-year-old child usually has around 50 words in their vocabulary, which rapidly expands as they approach their third year. This stage is characterized by the beginning of combining two words together, laying the foundation for more complex sentence structures later on. Understanding this milestone is essential for pediatricians to assess normal development.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it underestimates the typical vocabulary size of a 2-year-old.
**Option B:** This option overestimates the vocabulary of a 2-year-old, as most children at this age are just beginning to expand their vocabulary beyond 50 words.
**Option D:** Similarly, this option overestimates the average vocabulary size for a 2-year-old child.
**Clinical Pearl / High-Yield Fact**
Remembering that a 2-year-old should have about 50 words and start combining two words is crucial for assessing language development. Any significant delay warrants further evaluation.
**Correct Answer: C. 50 words**