Concept:The idiom means trying to find hope or a solution in a desperate situation, even when the chances are very slim.
Explanation:The phrase originates from a drowning person who grabs at straws, which are weak and cannot support them.
It implies that the person is willing to try anything, no matter how unlikely, because they have no other options.
For example, a person in a crisis might clutch at straws, hoping for a miracle without any logical reason.
This directly matches "hoping without reason."
The other options such as laughing loudly, boasting unnecessarily, or winning easily are unrelated to this meaning.
Answer:Option 1 i.e. Hoping without reason.