The best answer is D. visions from dreams.
1. Ashoka's conversion to Buddhism was inspired by the visions he had in his dreams. These dreams were significant events that led him to embrace Buddhism and its teachings.
2. The visions Ashoka experienced played a crucial role in shaping his beliefs and values, ultimately guiding him towards adopting Buddhism as his chosen path.
3. This conversion marked a pivotal moment in Ashoka's life, transforming him into a ruler known for his promotion of peace, compassion, and non-violence, which are central tenets of Buddhism.