Write the idiom for the given phrase.

Two persons arguing angrily.

Be at each other's throat.

The correct answer is Option (3) → Be at each other's throat.

Sure, here are the idioms for the given phrases:

• Two persons arguing angrily - At each other's throats.
• Ball of fire - A very energetic or enthusiastic person.
• Be in the mire - To be in a difficult or messy situation.
• Be one's brain out - To think very hard about something.