Linguist: Three of the four subfamilies of the so-called "Austronesian" languages are found only among indigenous peoples in Taiwan, whereas the fourth is found on islands over a huge area stretching from Madagascar to the eastern Pacific Ocean. █████ █████ ███████████ ███ ██████████ ██ ███ ████ █████████ █████ ████ ████ ████ ██████████ ██████ ██ █ ██████ ██████████ █████████ █████ █████ ███████ ████ ██████ ██ ███ ████████ █████ ████████████ █████████ ████ ████ ██████ ███████ ████ ██████ ████ █████████████████████ ███████ ██████████ ██ ██████ ███ █████ ████████ ██ █████ ████████
The linguist concludes that Austronesian-speaking peoples originated in Taiwan before migrating elsewhere. This is because Austronesian languages must all have one point of geographic and linguistic origin. Three out of four Austronesian subfamilies are only spoken in Taiwan, and all subfamilies must have the same origin. From this, the linguist infers that Taiwan is where Austronesian languages have been spoken the longest, which leads to the main conclusion.
The conclusion is where Austronesian-speaking peoples originated: “Austronesian-speaking peoples originated in Taiwan and later migrated to other islands.”
Which one of the following ████ ██████████ █████████ ███ ███████ ██████████ █████ ██ ███ ██████████ █████████
The Austronesian family ██ █████████ ███ ████ ████████████ █████ ██ █████ ███ █████ ████ █████ ██████████ ███████ ██ ███████
Wherever most subfamilies ██ ███ ████████████ ██████ ██ █████████ ████ ████ ██████ ███████ ██ ████████ ███ ████████ █████ ████████████ █████████ ███████████
Taiwan is probably ███ ████████ █████ ████████████ █████████ ████ ████ ██████ ████████
Austronesian-speaking peoples originated ██ ███ ████████ █████ ████████████ █████████ ████ ████ ██████ ████████
Austronesian-speaking peoples probably ██████████ ██ ██████ ███ █████ ████████ ██ █████ ████████