Which of the Following Best Describes the Relationship of Mahavira

Which of the following best describes the relationship of Mahavira and the Buddha with Brahman spiritual authority?

A) Both Mahavira and the Buddha accepted the elaborate cosmology of Brahman scholars.
B) Both Mahavira and the Buddha received most of their support from rural farmers.
C) Both Mahavira and the Buddha objected to the ritual sacrifices of animals by the Brahmans.
D) Both Mahavira and the Buddha relied upon the oral transmission of their teachings, whereas the Brahmans relied upon writing down their teachings in order to spread their knowledge widely.