Answer:Conclusion of Solheim’s Island Origin Theory:Solheim’s Island Origin Theory proposes that the Austronesian-speaking peoples originated from island Southeast Asia, particularly the Philippines, rather than from Taiwan, as suggested by other models. According to this theory, the Austronesians developed complex maritime skills and spread their culture, language, and technology throughout the Pacific and Indian Oceans. The theory emphasizes the importance of maritime trade networks and cultural interactions among island communities. In conclusion, Solheim's theory highlights the Philippines as a central point in the prehistoric movement and cultural development of Austronesian peoples, offering a different perspective from more land-based migration theories.