Option b is the correct answer. Hemchandra, a renowned Jain scholar, adorned the court of Kumarapala, who was the ruler of the Chaulukya dynasty. Hemachandra, born in 1088, was a prodigious scholar, poet, and philosopher. He became an advisor to King Kumarapala around 1125. During his time in the court, Hemachandra wrote works on politics from a Jain perspective, such as "Arhanniti," and produced the epic poem "Trishashti-shalaka-purusha-charita" detailing the history of significant figures in Jainism. His influence on Kumarapala led to Jainism becoming the official religion of Gujarat, with bans on animal slaughter and animal sacrifice.