Which of the following statements about the Philippines' international land borders is correct?

The correct statement is that the Philippines is an archipelago and has no land borders with any country, a fact explicitly confirmed by the CIA World Factbook's entry for the Philippines, which lists its land boundary total as zero. Composed of thousands of islands in the western Pacific Ocean, the Philippines is entirely surrounded by water, specifically the South China Sea to the west, the Philippine Sea to the east, and the Celebes Sea and Sulu Sea to the south, meaning every international boundary it has is maritime rather than terrestrial. Option A is incorrect because although Malaysia's Sabah state on Borneo lies relatively close to the southern Philippine island of Mindanao across the Sulu and Celebes Seas, the two countries are separated entirely by water, not by a shared physical frontier. Option B is incorrect because Taiwan, though the nearest territory to the north across the Luzon Strait, is likewise separated from the Philippines by open sea. Option C is incorrect for the same underlying reason; Indonesia and the Philippines are close maritime neighbours in the Celebes Sea region, and while they do share maritime boundary agreements, there is no land connection via Mindanao or any other island. A common exam confusion is treating close maritime proximity between island nations as equivalent to a land border, especially when textbooks mention 'boundary agreements' with Malaysia or Indonesia, which are strictly maritime delimitations, not land frontiers. Revision takeaway: any country classified as a pure archipelago, including the Philippines, Indonesia to a large extent, and similar island-only nations, will show a land boundary figure of zero in standard reference sources, which is a quick way to verify such questions during revision.