The correct answers are:
1. Buddhism;
Buddhism is the biggest religion in China, and East Asia as a region. It has by far the most followers, and is considered as one of the world's big religions. Even though there are other religions/teachings/philosophies that are practiced in the region, like Confucianism, Taoism, and Shintoism, still the Buddhism is the leader in the region.
2. Shinto;
Unlike the Buddhism and Hinduism, the Shintoism is a religion that has a core group of sacred scriptures. It is a religion/teaching that has it basis in Japan, where pretty much all of its followers live, and it is by far the most dominant religion/teaching among the Japanese population.
