Context: A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface., Madagascar, officially the Republic of Madagascar, and previously known as the Malagasy Republic, is an island country in the Indian Ocean, off the coast of Southeast Africa. The nation comprises the island of Madagascar (the fourth-largest island in the world), and numerous smaller peripheral islands. Following the prehistoric breakup of the supercontinent Gondwana, Madagascar split from the Indian peninsula around 88 million years ago, allowing native plants and animals to evolve in relative isolation. Consequently, Madagascar is a biodiversity hotspot; over 90% of its wildlife is found nowhere else on Earth. The island's diverse ecosystems and unique wildlife are threatened by the encroachment of the rapidly growing human population and other environmental threats., The Glorieuses or Glorioso Islands (or officially also "Archipel des Glorieuses") are a group of French islands and rocks totalling , at , in the Indian Ocean, about northwest of Madagascar. In 2012, France founded "parc naturel marin des Glorieuses", a marine protected area, to preserve the endangered flora and fauna of the islands. The Glorieuses have an Exclusive Economic Zone (EEZ) of . There are anchorages offshore, and Grande Glorieuse has a long airstrip., Banc Vailheu is a submerged volcano in the Comoro Islands group . It is located 12 knots west of Grand Comoro and extends for nine miles underwater . Banc Vailheu is a wall diving location ., An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. A grouping of geographically or geologically related islands is called an archipelago, e.g. the Philippines., The Comoros Islands or Comoros (Shikomori "Komori" "Juzur al-Qamar"; French Les Comores) form an archipelago of volcanic islands situated off the south-east coast of Africa, to the east of Mozambique and north-west of Madagascar. The islet of Banc du Geyser and the Glorioso Islands are part of the archipelago., Banc du Geyser (also Banc du Geysir) is a mostly submerged reef in the Mozambique Channel's northeastern part, northeast from Mayotte, southwest of the Glorioso Islands, and off the northwestern coast of Madagascar., Mozambique (or ), officially the Republic of Mozambique (or "") is a country in Southeast Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi and Zambia to the northwest, Zimbabwe to the west, and Swaziland and South Africa to the southwest. It is separated from Madagascar by the Mozambique Channel to the east. The capital and largest city is Maputo (known as "Lourenço Marques" before independence)., Earth, otherwise known as the world, is the third planet from the Sun and the only object in the Universe known to harbor life. It is the densest planet in the Solar System and the largest of the four terrestrial planets., Subject: banc vailheu, Relation: country, Options: (A) comoros (B) madagascar (C) malawi (D) mozambique (E) philippines (F) south africa (G) tanzania (H) world (I) zambia
Output: comoros