Select the most appropriate meaning of the given idiom.
Shot in the arm.

Correct option is B

Option (b) "Something that lifts your spirit" is the correct meaning of the idiom.
Given Idiom: "Shot in the arm" means something that boosts or revitalizes you.
Example: The news of their promotion was a real shot in the arm for the team.
Similar idioms: "Pick-me-up," "morale booster."