Select the correct conclusion based on the meaning of the highlighted word:
Statement: These days he is working on a monograph which is very important for him.
i. He is writing a memoire of his father who was a successful poet.
ii. His work on a specialized subject is an important resource for scholars.
iii. He is rehearsing his lines for the play to be performed at the annual function.
iv. He is creating an architectural masterpiece out of a single piece of stone.

Correct option is C

The correct conclusion is (c) Only ii is correct.
Monograph: A detailed written study on a single specialized subject, often scholarly. (एक विषय पर विस्तृत लेख / शोध-पत्र)
Explanation: Among the options, only statement ii reflects the correct definition. A monograph is an academic or scholarly treatise on a specific subject matter.
Example: Her monograph on climate change received international acclaim.
Options i, iii, and iv are unrelated to the meaning of monograph.