Select the most appropriate meaning of the given idiom.

True colours

Real character

The most appropriate meaning of the given idiom "True colours" is (3) Real character.

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

• Black and white are colors, but they do not represent someone's real character.
• Light colors are also colors, but they do not represent someone's real character.
• Bright colors are also colors, but they do not represent someone's real character.

The idiom "true colors" is used to describe someone's real nature or personality. It is often used when someone is behaving in a way that is unexpected or different from their usual behavior.