Explanation:

- Option 1: Ustad Rehman Khan is not widely recognized as a famous sitar player. This option might refer to a different role in music, such as a vocalist or a player of another instrument.

- Option 2: Kishan Maharaj was an eminent Indian tabla player, known for his expertise in playing this percussion instrument rather than the sitar.

- Option 3: Ali Ahmad Hussain was famous for being a shehnai player, carrying forward the legacy of this woodwind instrument.

- Option 4: Anoushka Shankar is a celebrated sitar player and composer, trained by her renowned father, Ravi Shankar. Her contributions to both classical and contemporary music have earned her global acclaim.