Correct option is D
The error lies in option (d).
Explanation:
- Mount Everest is a proper noun (name of a mountain). Proper names of mountains generally do not take the definite article the before Mount.
- Therefore, to the Mount Everest is incorrect. It should be to Mount Everest.
- The usage is leaving next month is acceptable for a fixed future plan (present continuous used for future arrangements).
Correct sentence:
The Indian expedition to Mount Everest is leaving next month.
Grammatical rule (English):
Proper nouns are generally used without an article; do not use the before “Mount + Name.”
व्याकरण नियम (Hindi):
Proper noun के साथ सामान्यतः the का प्रयोग नहीं होता; “Mount Everest” से पहले “the” नहीं आएगा।
So the correct answer is (d)