Identify the part which contains an error.
The Canterbury Tales (A) are a great work (B) of literary merit (C) in English. (D)

Correct option is B

Option (b) contains an error.
Detailed Explanation (English):
• “The Canterbury Tales” is the title of a book/work of literature.
• Titles of books, dramas, newspapers, etc., though they may look plural, are treated as singular.
• Therefore, the singular verb is should be used, not “are”.
• Hence, “are a great work” is incorrect.
Correct sentence: The Canterbury Tales is a great work of literary merit in English.
Grammatical Rule Used (English):
• Titles of books/works are treated as singular → singular verb is used.
• Singular subject → singular verb (is/was).
Grammatical Rule Used (Hindi):
• पुस्तकों/कृतियों के नाम (titles) चाहे plural जैसे दिखें, उन्हें एक इकाई माना जाता है।
• इसलिए verb singular आता है: are की जगह is।
Example:
“Gulliver’s Travels” is a famous book.