In the following question, an idiomatic expression and its four meanings are given. Find out the correct meaning of the idiomatic expression and indicate the number of that meaning as your answer.
Live wire
The correct answer is option 4, i.e., 'An unpredictable person'.
'Live wire' refers to an energetic or unpredictable person.
Example - 'My sister was the live wire while I was the quiet one.'