Correct option is B
Option (b) is the correct meaning of the given idiom.
Given Idiom:
To have an axe to grind means
to have a selfish or ulterior motive, often while pretending to be fair or helpful. (निजी स्वार्थ होना)
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Example:
He supports that politician only because he has an axe to grind.
Other related idioms and their meanings:
·
Blow one’s own trumpet – to boast about oneself
·
Feather one’s nest – make money dishonestly
·
Dog in the manger – someone who prevents others from enjoying something they don’t want themselves