The correct option is B Jainism
Acharya Bhadrabahu was the last acharya of United Jainism. During the reign of Chandragupta Maurya, Bhadrabahu predicted 12 years of famine in Magada. As it was impossible to follow the rules of Jainism strictly during the famine, he with his disciples moved to Karnataka. Then Sthulabhadra who was also the disciple of Bhadrabahu decided to stay in Magadha and follow Jainism by making its rule simple and easier. This next sect was known as Shvetamabara. Thus Jainism was divided into two sects: Sevtambara and Digambara.