A distinctive sign with an image symbolizing its owner, person, class, family, city, country – this is...

• coat of arms
• flag
• anthem

The image presents a question asking for the definition of a distinctive sign that symbolizes its owner, person, class, family, city, or country. The options provided are 'coat of arms', 'flag', and 'anthem'. Based on common understanding, a 'coat of arms' fits this description most accurately.

Answer: coat of arms