Context: The black tree monitor or Beccari 's monitor ( Varanus beccarii ) is a relatively small member of the Varanidae family , growing to about 90 -- 120 cm ( 35 -- 47 in ) in length . They inhabit the Aru Islands off New Guinea , living in an arboreal habitat . Their skin color is completely black , lending them their name ., Lizards are a widespread group of squamate reptiles, with over 6,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group, traditionally recognized as the suborder Lacertilia, is defined as all extant members of the Lepidosauria (reptiles with overlapping scales) that are neither sphenodonts (i.e., tuatara) nor snakes  they form an evolutionary grade. While the snakes are recognized as falling phylogenetically within the Toxicofera clade from which they evolved, the sphenodonts are the sister group to the squamates, the larger monophyletic group, which includes both the lizards and the snakes., Indonesia (or ; Indonesian: ), officially the Republic of Indonesia, is a unitary sovereign state and transcontinental country located mainly in Southeast Asia with some territories in Oceania. Situated between the Indian and Pacific oceans, it is the world's largest island country, with more than seventeen thousand islands. At , Indonesia is the world's 14th-largest country in terms of land area and world's 7th-largest country in terms of combined sea and land area. It has an estimated population of over 260 million people and is the world's fourth most populous country, the most populous Austronesian nation, as well as the most populous Muslim-majority country. The world's most populous island of Java contains more than half of the country's population., Varanoidea is a superfamily of lizards, including the well-known family Varanidae (the monitors or goanna). Also included in the Varanoidea are such extinct marine and semi-aquatic forms as mosasaurs and dolichosaurus, the venomous helodermatids (Gila monsters and beaded lizards), the Lanthanotidae (earless monitor lizards), and the extinct Necrosauridae., The Komodo dragon ("Varanus komodoensis"), also known as the Komodo monitor, is a large species of lizard found in the Indonesian islands of Komodo, Rinca, Flores, Gili Motang, and Padar. A member of the monitor lizard family Varanidae, it is the largest living species of lizard, growing to a maximum length of in rare cases and weighing up to approximately ., The Aru Islands (also Aroe Islands or Kepulauan Aru) are a group of about ninety-five low-lying islands in the Maluku province of eastern Indonesia. They also form a regency of Maluku province, with a land area of 6,269 square kilometres., Varanidae is a family of lizards of the superfamily Varanoidea. The family, a group of carnivorous and frugivorous lizards, includes the extinct Megalania (the largest known lizard), the Komodo dragon (the largest living lizard), and the crocodile monitor. The Varanidae contain the living genus "Varanus" and a number of extinct taxa. Their closest living relatives are the anguid and helodermatid lizards., Megalania ("Megalania prisca" or "Varanus priscus") is an extinct giant goanna or monitor lizard. They were part of a megafaunal assemblage that inhabited southern Australia during the Pleistocene. The youngest fossil remains date to around 50,000 years ago. The first aboriginal settlers of Australia might have encountered them., Subject: black tree monitor, Relation: parent_taxon, Options: (A) area (B) crocodile (C) gila (D) lepidosauria (E) lizard (F) monitor lizard (G) toxicofera (H) varanidae (I) varanoidea
Output: monitor lizard