Correct option is A
Correct Option: a)
The presence of frets and the method of sound production (bowed vs. plucked). Fretted instruments have raised ridges on the fingerboard to mark note positions.
Information Booster:
·
Surbahaar, Sitar, and Rudra Veena are all
plucked string instruments that have frets.
· They are played with a wire plectrum (mizrab) or fingernails,
not with a bow.
· They belong to the lute family.
Additional Knowledge:
· The
Israaj and Dilruba are both
bowed instruments (played with a bow).
· While they have a fretless fingerboard or tied-string ligatures, they are not primarily classified as "fretted" in the same way as a sitar, and their playing technique is fundamentally different (bowing).