Ancestral Beings in Australian Aboriginal world, as described in both articles:
A. continue to inspire, protect, support, and govern daily life of traditional Aboriginal people to this day
B. and the Lightening Brothers, depicted in the Wardaman rock art, described by Bill Harney
C. are spirits that live above clan country of Mumendadguni and protect it
D. have no relevance to 20th and 21st century Aboriginal people who live in cities today

A. continue to inspire, protect, support, and govern daily life of traditional Aboriginal people to this day

Explanation:

Ancestral Beings in Australian Aboriginal world, as described in both articles continue to inspire, protect, support, and govern daily life of traditional Aboriginal people to this day .  

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.