Answer:
Explanation:
Chomsky's observations have significantly influenced our understanding of language development. Let's analyze the given options:
1. **a) All parents reinforce correct use of grammar**:
- Chomsky did not specifically make this observation. While parents play a role in language acquisition, their reinforcement of grammar is not a universal rule.
2. **b) All young children master basic grammar according to a schedule**:
- Chomsky's theory of **Universal Grammar** suggests that certain grammatical structures and rules are innate to all human languages.
- However, he did not specifically state that all children follow a rigid schedule for mastering grammar.
3. **c) Some rules of grammar are present in all languages**:
- This aligns with Chomsky's theory. He proposed that there are underlying universal grammar rules shared across languages.
- These rules form the basis for language development.
4. **d) All grammar rules are the same across all languages**:
- Chomsky did not assert this. Instead, he emphasized common structural elements (universal grammar) while recognizing surface differences among languages.
Therefore, the correct answer based on Chomsky's observations is **c) Some rules of grammar are present in all languages**. Chomsky's work highlights the existence of shared linguistic principles across diverse languages.