Select the most appropriate meaning of the given idiom.

To bite the bullet

To be brave in a difficult situation

The most appropriate meaning of the idiom "to bite the bullet" is to be brave in a difficult situation. It means to face something unpleasant or difficult, even though it is scary or painful.

The other options are not as appropriate.

• To reject doing something difficult or unpleasant means to refuse to do something that is challenging or disagreeable.
• To be upset or annoyed means to feel angry or frustrated.
• To state your opinion openly means to express your beliefs or thoughts without reservation.