Ustad Bade Ghulam Ali Khan was renowned a __________.

classical singer

The correct answer is Option (4) - classical singer

Ustad Bade Ghulam Ali Khan was a renowned classical singer, celebrated for his mastery of Indian classical music, particularly the Hindustani classical vocal tradition. He was known for his mesmerizing voice, intricate melodies, and emotive renditions, earning him a distinguished place among the greats of Indian classical music.