Information: - Jacobs Peak ( 80 4 S 157 46 E ) is a peak , 2,040 metres ( 6,700 ft ) high , surmounting the northern end of the ridge which stands on the west side of Ragotzkie Glacier , in the Britannia Range , Antarctica . It was named by the Advisory Committee on Antarctic Names for John D. Jacobs , a U.S. exchange observer at Vostok Station in 1964 . - The Soviet Union, officially the Union of Soviet Socialist Republics (USSR " ) was a socialist state in Eurasia that existed from 1922 to 1991. A union of multiple subnational republics, its government and economy were highly centralized. The Soviet Union was a one-party federation, governed by the Communist Party with Moscow as its capital. - Antarctica (US English , UK English or ) is Earth's southernmost continent. It contains the geographic South Pole and is situated in the Antarctic region of the Southern Hemisphere, almost entirely south of the Antarctic Circle, and is surrounded by the Southern Ocean. At , it is the fifth-largest continent. For comparison, Antarctica is nearly twice the size of Australia. About 98% of Antarctica is covered by ice that averages in thickness, which extends to all but the northernmost reaches of the Antarctic Peninsula. - Vostok Station (, literally "Station East") is a Russian (formerly Soviet) research station in inland Princess Elizabeth Land, Antarctica. Founded by the Soviet Union in 1957, the station lies at the southern Pole of Cold, with the lowest reliably measured natural temperature on Earth of . Research includes ice core drilling and magnetometry. Vostok (Russian for ""east"") was named after "Vostok", the lead ship of the First Russian Antarctic Expedition captained by Fabian von Bellingshausen (the second ship "Mirny" captained by Mikhail Lazarev became the namesake for Mirny Station). - Princess Elizabeth Land is the sector of the Australian Antarctic Territory between longitude 73 east and Cape Penck 8743' east. Princess Elizabeth Land is located between 6456'S and 9000'S and between 7335' E and 8743'E. It is divided into two sectors: - An ice core is a core sample that is typically removed from an ice sheet, most commonly from the polar ice caps of Antarctica, Greenland or from high mountain glaciers elsewhere. As the ice forms from the incremental buildup of annual layers of snow, lower layers are older than upper, and an ice core contains ice formed over a range of years. The properties of the ice and the recrystallized inclusions within the ice can then be used to reconstruct a climatic record over the age range of the core, normally through isotopic analysis. This enables the reconstruction of local temperature records and the history of atmospheric composition. - The Advisory Committee on Antarctic Names (ACAN or US-ACAN) is an advisory committee of the United States Board on Geographic Names responsible for recommending names for features in Antarctica. The United States does not recognise territorial boundaries within Antarctica, so ACAN will assign names to features anywhere within the continent, in consultation with other national nomenclatural bodies where appropriate. - The Mirny Station (literally "Peaceful") is a Russian (formerly Soviet) science station located in Queen Mary Land, Antarctica, on the Antarctic coast of the Davis Sea in the Australian Antarctic Territory. - Russia (from the Rus'), also officially known as the Russian Federation, is a country in Eurasia. At , Russia is the largest country in the world by surface area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with over 140million people at the end of March 2016. The European western part of the country is much more populated and urbanised than the eastern, about 77% of the population live in European Russia. Russia's capital Moscow is one of the largest cities in the world, other major urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod and Samara. - The United States Board on Geographic Names (BGN) is a federal body within the United States Geological Survey, an agency of the Department of the Interior. The purpose of the board is to establish and maintain uniform usage of geographic names throughout the federal government of the United States. - Admiral Mikhail Petrovich Lazarev (3 November 1788 11 April 1851) was a Russian fleet commander and an explorer. After reading the paragraphs above, we are interested in knowing the entity with which 'jacobs peak' exhibits the relationship of 'instance of'. Find the answer from the choices below. Choices: - age - agency - april - cape - capital - circle - commander - committee - communist party - composition - continent - department - economy - expedition - federal government - federation - fleet - geological survey - government - ice sheet - march - mountain - november - ocean - party - people - range - saint - sector - ship - size - socialist state - soviet - station - surface - territory - vostok
A:
mountain