Explanation:

- Paryushan is an important religious festival celebrated mainly by the Jain community.

- This festival typically involves fasting, spiritual upliftment, and reflection.

- Option 1: Buddhist - This community does not celebrate Paryushan. Instead, they have their own festivals like Vesak, commemorating Buddha's birth.

- Option 2: Jew - Jewish people celebrate festivals like Hanukkah and Passover, not Paryushan.

- Option 3: Jain - Paryushan is a major observance for Jains, focusing on purification and introspection.

- Option 4: Zoroastrian - They celebrate festivals such as Nowruz, unrelated to Paryushan.