Select the most appropriate meaning of the given idiom.
Needle in a haystack

Correct option is C

Option (c) is the correct meaning of the given idiom.
Needle in a haystack: Something that is very hard or nearly impossible to find. (भूसे के ढेर में सुई खोजना)
Example: Finding your lost ring in this park is like searching for a needle in a haystack.
At least 3 other related idioms and their meanings:
· Wild-goose chase – A foolish or hopeless search.
· Barking up the wrong tree – Pursuing a false lead.
· Beat around the bush – Avoiding the main point.