To determine the correct observation about the given sentences, let's analyze each one separately:
- Sentence (i): "Everybody in the class is prepared for the exam."
This sentence is simple and has clear grammatical structure:
- "Everybody" is a singular pronoun treated as singular, which matches the singular verb "is."
- The sentence conveys a complete thought without ambiguity.
Therefore, this sentence is grammatically correct.
- Sentence (ii): "Babu invited Danish to his home because he enjoys playing chess."
This sentence presents ambiguity in its structure:
- The pronoun "he" can refer to either Babu or Danish, leading to two possible interpretations:
- Babu invited Danish because Babu enjoys playing chess.
- Babu invited Danish because Danish enjoys playing chess.
- This ambiguity suggests a lack of clarity, as the reader cannot be certain of the intent without additional context.
Therefore, this sentence is ambiguous.
Conclusion: Based on the analysis, the correct observation is that sentence (i) is grammatically correct and sentence (ii) is ambiguous.