The sound produced by which instrument has more pitch?

The following figure shows the displacement time graph for a sound wave produced by an instrument. Which graph can be obtained when another muscial instrument produces a note of the same pitch but of a different quality ?

Assertion (A) : The pitch of the sound produced by the vibrating string can be changed. Reason (R) : The pitch of the sound can be changed by changing the length, tension and thickness of the vibrating string.

Assertion (A): The musical notes produced by two musical instruments, like guitar and sitar are different even if the length and the thickness of the strings in both instruments are the same. Reason (R) : The difference in two sounds of equal pitch and loudness can be distinguished by a characteristic property called quality of sound ro timbre.

The figure given below shows the images of sound waves. Look at them and answer the following questions Which two sounds were produced by the same instrument ?

A sound is produced by plucking a string in a musical instrument, then