The correct answer is (b) Hemchandra Suri.
Hemchandra Suri was a 12th-century Jain scholar, poet, and polymath. He was born in Gujarat, India, and is considered one of the most important figures in Jain literature. He wrote extensively on a variety of topics, including grammar, logic, rhetoric, poetry, and philosophy. He is also credited with compiling the first dictionary of the Jain language, Ardhamagadhi Prakrit.
Maladhar Vasu was a 10th-century Indian scholar and writer. He was born in Kashmir and is best known for his work on Sanskrit grammar. He is also the author of several works on Hindu philosophy and religion.
Parthasarthi was a 12th-century Indian scholar and writer. He was born in Gujarat and is best known for his work on Jain philosophy. He is also the author of several works on Hindu philosophy and religion.
Saayan was a 13th-century Indian scholar and writer. He was born in Gujarat and is best known for his work on Jain philosophy. He is also the author of several works on Hindu philosophy and religion.
All four of these scholars were highly accomplished and made significant contributions to their respective fields. However, only Hemchandra Suri was a Jain.