Metals produce ringing sound when hit another metal because they are _______.

Sonorous

The correct answer is option 3. Sonorous.

Metals produce a ringing sound when hit against another metal because they are sonorous.

The property of sonority refers to the ability of a material to produce a ringing or musical sound when struck. Metals, due to their dense and crystalline structure, have the ability to vibrate freely when struck, resulting in the production of a distinctive ringing sound. This property makes metals useful in musical instruments like bells and cymbals.