What are the 3 theories origin of the first Filipinos?

The three main theories on the origin of the first Filipinos are the Out-of-Taiwan theory, the Southern Origin Theory, and the North-to-South theory. The Out-of-Taiwan theory suggests that Austronesian-speaking people migrated from Taiwan to the Philippines, while the Southern Origin Theory proposes a migration from the south via Borneo and Sulawesi. The North-to-South theory suggests a migration from the Asian mainland to the Philippines.