Correct option is C
The correct option to fill in the blank is (c)
inquiry.
Explanation: The sentence requires a noun meaning “investigation.” “Inquiry” fits contextually and grammatically. (Inquiry = जांच/छानबीन)
Example: The inquiry concluded that there was no foul play.
Other options:
· (a)
Impute: to attribute fault (आरोप लगाना) – Verb
· (b)
Impugn: to question or attack as false (विवादित करना) – Verb
· (d)
Inordinate: excessive (अत्यधिक) – Adjective