Ustad Bismillah Khan was associated with which of the following musical instruments?

Ustad Bismillah Khan was associated with the shehnai, a traditional Indian musical instrument. He was a renowned shehnai player and one of the most prominent musicians in India. Khan popularized the shehnai as a solo concert instrument and contributed significantly to its recognition both nationally and internationally. His mastery of the shehnai and his innovative approach to music earned him numerous accolades and awards, including the Bharat Ratna, India's highest civilian award, in 2001.