Select the most appropriate meaning of the given idiom.

All ears

To listening attentively

The most appropriate meaning of the idiom "all ears" is (2) To listen attentively.

The other options do not fit the meaning of the idiom.

• To scold someone bitterly is to criticize them harshly.
• To listen to everyone means to be open to hearing what everyone has to say.
• To not be vocal means to be quiet or to not speak up.