The following sentence has been divided into parts. One of them may contain an error. Select the part that contains the error from the given options. If you don’t find any error, mark ‘No error’ as your answer.
My cousin thinks that / English is difficult / than other subjects.

Correct option is D

Option (d) contains an error.
· The phrase "English is difficult than" is incorrect.
· The correct phrase should be "English is more difficult than" because comparative adjectives require "more" before them if they are not naturally comparative (e.g., "more intelligent," "more beautiful").
Grammatical Rule Used:
· Comparative adjectives (like "difficult") require "more" before them when forming a comparison.
· Correct structure: Subject + verb + more + adjective + than + object
Example:
❌ This book is interesting than that one. (Incorrect)
✔️ This book is more interesting than that one. (Correct)