Which of the following accurately reflects the historical context of the Ajivika school?
AThe Ajivikas were contemporaries of early Buddhism and Jainism and are mentioned in their scriptures.
BThe Ajivika tradition developed as a reform movement within early Christianity in India.
CThe Ajivikas emerged during the Gupta Empire and influenced Advaita Vedanta.
DThe Ajivika school was a post-Vedic sect that thrived during the medieval Bhakti movement.