Option c is the correct answer. The validation that "In spite of being Buddhist, Ashoka did not leave belief in Hinduism" lies in the epithet 'Devanampriya' used in Ashoka's inscriptions. This term, meaning "Beloved of the Gods," reflects Ashoka's continued reverence for divinity, which is a concept shared between Buddhism and Hinduism, showcasing his respect for both religions. He also built Hindu temples and donated to Hindu charities.