Correct Option: A

Jain belief goes to accept unanimously Rishab Dev as the founder of Jain religion. Evidences of this fact are available to the worship to Tirthankar Reshabh Dev was in vogue before 1 st Century BC. There is no doubt that Jain religion has been prectsed before Vardhman as well as before Parsvanath. Namesz of Rishabh Dev, Ajitnath and Aristhnemi were indicated in Yajurveda. Bhagwat Puran also confirms that Rishabh Dev was the founder of Jain religion.