Explanation:

- Pandit Ravi Shankar is a legendary musician widely recognized for his remarkable contribution to Indian classical music.

- He is famous for playing the sitar, a traditional Indian stringed instrument.

- Option 1: Sitar - Pandit Ravi Shankar is most closely associated with the sitar. It is the instrument that brought him international fame.

- Option 2: Violin – While the violin is prevalent in Indian classical music, it is not Ravi Shankar’s main instrument.

- Option 3: Flute – The flute is prominent in Indian music, but it is not related to Ravi Shankar’s primary work.

- Option 4: Guitar – Although globally popular, the guitar is not associated with Pandit Ravi Shankar’s career.