Select the most appropriate meaning of the given idiom.

Getting butterflies in one's stomach

To be anxious and nervous

The most appropriate meaning of the idiom "getting butterflies in one's stomach" is to be anxious and nervous.

The other options are incorrect.

• "To be confident of oneself" does not mean to be anxious and nervous. Confidence means feeling sure of oneself, while being anxious and nervous means feeling worried or apprehensive.
• "To be suspicious of someone" does not mean to be anxious and nervous. Suspicious means feeling uncertain or doubtful about someone, while being anxious and nervous means feeling worried or apprehensive.
• "To be very angry with someone" does not mean to be anxious and nervous. Anger means feeling intense displeasure or hostility, while being anxious and nervous means feeling worried or apprehensive.

The idiom "getting butterflies in one's stomach" comes from the idea of butterflies fluttering around in your stomach. In the same way, getting butterflies in one's stomach is a feeling of anxiety or nervousness, often caused by excitement or anticipation. For example, you might say that you have butterflies in your stomach before a job interview or a big test.