A legendary Kannada playback singer known for his soulful voice:

S.P. Balasubrahmanyam
K.J. Yesudas
P.B. Sreenivas
Mohammad Rafi

The correct answer is C) P.B. Sreenivas.

P.B. Sreenivas (1943-2020) was an Indian playback singer who was known for his soulful voice. He was born in Mysore, Karnataka, India and started his career as a child singer. He sang in many languages, including Kannada, Telugu, Tamil, Malayalam, Hindi, and Marathi. He was awarded the Padma Shri, the fourth highest civilian award in India, in 2001.

S.P. Balasubrahmanyam (1946-2020) was an Indian playback singer who was known for his versatility and range. He sang in many languages, including Telugu, Tamil, Kannada, Hindi, Malayalam, and Bengali. He was awarded the Padma Vibhushan, the third highest civilian award in India, in 2001.

K.J. Yesudas (born 1940) is an Indian playback singer who is known for his melodious voice. He has sung in many languages, including Malayalam, Tamil, Telugu, Kannada, Hindi, and Bengali. He has won the National Film Award for Best Male Playback Singer a record eight times.

Mohammad Rafi (1924-1980) was an Indian playback singer who was known for his powerful voice. He sang in many languages, including Hindi, Urdu, Punjabi, Bengali, Marathi, and Gujarati. He is considered one of the greatest playback singers of all time.