Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave ways or leave out essential information A. The oldest rock art sites have simpler motifs than the best known sites of Panaramitee North. B. Because motifs primarily associated with the Panaramitee region are common in the oldest sites the term Panaramitee style has become the general term for rock art of this type. C. Because the Panaramitee style is so common in the older sites, researchers have described it most extensively. D. The motifs carved in the rocky surface of the Panaramitee region make up the oldest form of rock art discovered in Australia.