In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.
In a nutshell

Correct option is D

Option (d) is the correct meaning of the given idiom.
Idiom: In a nutshell – This phrase means to summarize something very briefly or in a concise manner. (संक्षेप में, छोटे रूप में)
Example:
Let me explain the plan in a nutshell – we’re launching next week.
Other related idioms and their meanings:
· Cut a long story short – To summarize briefly.
· To sum up – To give a brief summary.
· In short – Used to summarize an idea briefly.