The correct answer is: D. All of these
Chakri music is a genre of folk music from the Indian state of Rajasthan. It is traditionally performed by a group of musicians who play a variety of instruments, including the gagar, rubab, and sarangi.
The gagar is a large, double-headed drum that is played with the hands. It is the most important instrument in Chakri music and provides the rhythmic foundation for the other instruments.
The rubab is a long-necked lute that is played with a plectrum. It is used to play the melody in Chakri music.
The sarangi is a bowed string instrument that is used to play the melody and harmony in Chakri music.
All of these instruments are essential to the sound of Chakri music and contribute to its unique and vibrant sound.