From Aceh in the far northwest to Torres Strait in the east is 5000 miles, almost as far as from London to Baghdad. The archipelago has 14,000 islands, some mere equatorial rocks, others some of the largest in the world." This description best fits:

Correct Option (d)

The description accurately fitsIndonesia. Indonesia is theworld's largest archipelagic state, comprising over17,000islands, though historical references often cite around14,000.

• Its vast geographical extent, stretching from Aceh in northwestern Sumatra to the region near the Torres Strait (located between Papua New Guinea and Australia), aligns with the 5000-mile span mentioned in the passage.
• The archipelago includes major islands such as Sumatra, Java, Borneo (shared), Sulawesi, and New Guinea (shared), alongside numerous smaller islets, consistent with the description of islands ranging from "mere equatorial rocks" to "some of the largest in the world."
• Its location astride the equator explains the reference to "equatorial rocks."

Incorrect Options

(a) West Indies: This archipelago is located in the Caribbean Sea and is significantly smaller in both geographical extent and the number of islands compared to the description. It does not span 5000 miles.

(b) Japan: Japan consists of approximately 6,852 islands. While a significant archipelago, its geographical spread and island count are considerably less than the 5000 miles and 14,000 islands mentioned in the passage.

(c) Philippines: The Philippines comprises over 7,600 islands. Although a large archipelago, its total area and linear extent are much smaller than described, and it does not stretch from Aceh to the Torres Strait.