Identify the part which contains the error.
English (A) as well as French (B) was taught (C) on the college. (D)

Correct option is D

Option (d) contains an error.
Detailed Explanation (English):
• The error is in the preposition phrase “on the college”.
• For places like school/college/hospital (as a building/place), we generally use in/at, not “on”.
• Here the intended meaning is location, so the correct usage is in the college (or at the college).
• Therefore, part (d) is incorrect.
Correct sentence: English as well as French was taught in the college.
Grammatical Rule Used (English):
• Prepositions of place:
– in for inside an enclosed place/building (in the college)
– at for a point/place (at the college)
– on for surface contact (on the table), so it is wrong here
Grammatical Rule Used (Hindi):
• “on” का प्रयोग सतह (surface) के लिए होता है (जैसे on the table)।
• कॉलेज/स्कूल जैसे स्थानों के लिए सामान्यतः in/at प्रयोग होता है।
• इसलिए “on the college” गलत है; सही होगा “in the college/at the college”。
Example:
• He studies in the college.