The correct answer is option 4, Portuguese. East Timor, located in the Indonesian Archipelago, was a former colony of Portugal. Portugal colonized the region in the 16th century and maintained control over it until 1975. During Portuguese rule, East Timor was known as Portuguese Timor. However, after gaining independence from Portugal, East Timor experienced a period of political instability and was later invaded and annexed by Indonesia in 1975. It wasn`t until 2002 that East Timor finally achieved full independence. Therefore, it is important to note that while the other options, such as the Dutch, English, and French, had colonial presence in various parts of the Indonesian Archipelago, East Timor specifically was a former colony of Portugal.