Which of the following music instruments are solid instruments ?

The correct answer is Option (2) - Ghana Vadya

Ghana Vadya:  This term refers to solid instruments in Indian music classification. These instruments produce sound primarily by the vibration of a solid material when struck or shaken. Examples include cymbals, bells, and the ghatam (clay pot drum).

Tata Vadya: These are string instruments where the sound is produced by vibrating stretched strings. Examples include the sitar and veena.

Avanaddha Vadya: These are membranophones, instruments with a stretched membrane that vibrates to produce sound. Examples include the tabla and dhol (drums).

Sushira Vadya: These are wind instruments where air blown through them creates the sound. Examples include the flute and shehnai.