Select the most appropriate synonym of the highlighted word in the sentence.
The ruins of this building do tell us the story of a defunct organisation.

Correct option is A

The correct synonym of the given word is obsolete.
Defunct: No longer existing, operating, or functioning. (अप्रचलित, बंद)
Example: That factory has been defunct for years.
Obsolete: Outdated or no longer used. (पुराना, अप्रचलित)
Example: Typewriters are now considered obsolete.
Synonyms: extinct, outdated, obsolete.
Antonyms: active, functioning, current.
Meanings of other options:
· (b) Ancient: Very old (प्राचीन) – may still exist
· (c) Contemporary: Present-day (समकालीन)
· (d) Prominent: Well-known (प्रसिद्ध)