In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Input: Consider Input: Question: Are there any penguins on any of the islands Otto visited? Passage:He led the 1901-1904 Swedish Antarctic Expedition, aboard the ship Antarctic. The expedition visited the Falkland Islands before the ship, commanded by seasoned Antarctic sailor Carl Anton Larsen, dropped Nordenskjöld's party off at Snow Hill Island, a small island off the coast of the Antarctic Peninsula. Nordenskiöld overwintered at Snow Hill Island, while Antarctic returned to the Falklands. The following summer Larsen brought her south, intending to retrieve the Nordenskiöld party, but she became trapped in ice which eventually crushed her hull, forcing Larsen and his crew to overwinter in a hastily constructed shelter on Paulet Island. Larsen and Nordenskjöld finally rendezvoused at their fall-back rescue hut at Hope Bay in late 1903, where they were picked up by the Argentine Navy corvette ARA Uruguay (commanded by Julián Irízar), which had been dispatched when Antarctic had failed to make her appointed return to South America the previous year. Despite its end and the great hardships endured, the expedition was considered a scientific success, with the parties having explored much of the eastern coast of Graham Land, including Cape Longing, James Ross Island, the Joinville Island group, and the Palmer Archipelago. The expedition, which also recovered valuable geological samples and samples of marine animals, earned Nordenskjöld lasting fame at home, but its huge cost left him greatly in debt.
 Links: a. Graham Land b. Palmer Archipelago c. Falkland Islands d. ARA Uruguay

Output: c


Input: Consider Input: Question: When was the university where Nehru was awarded the Doctor of Literature degree founded? Passage:Nehru was born in Allahabad, Uttar Pradesh, India and was son of Brijlal Nehru and Rameshwari Nehru He was educated at the Allahabad University (India), the London School of Economics and at Oxford University. He was awarded the Doctor of Literature degree by the University of Punjab, for his distinguished services in various fields. His grandfather, Pandit Nandlal Nehru, was the elder brother of Pandit Motilal Nehru. He was the cousin to the erstwhile Prime Minister of India, Indira Gandhi (née Nehru). In 1935, Nehru married Magdolna Friedman (5 December 1908, Budapest, Austria-Hungary - 25 April 2017, Kasauli, Himachal Pradesh, India), a fellow student in the UK who was of an Austrian Jewish background. The ill-treatment of the Jewish community in Europe prompted her father to change her name to Magdolna Forbath. Her nickname was Fori. After marriage, she changed her name to Shobha Nehru. He had four sons named Aditya Nehru, Ashok Nehru and Anil Nehru.
 Links: a. London School of Economics b. University of Oxford c. Himachal Pradesh d. University of the Punjab

Output: d


Input: Consider Input: Question: How many people live in the city that the largest railway station in Serbia is located in? Passage:Belgrade marshalling yard () or Makiš railway station (), or Makiš freight station, is a classification yard of the Belgrade railway junction and the largest railway station in Serbia. It is located in the neighbourhood of Makiš in Čukarica of Belgrade. The railroad continues to Ostružnica in one line via park A, in the other direction to Ostružnica via park B, in third direction to Resnik via junction B near Železnik and junction K of Belgrade railway junction near Petlovo Brdo, in fourth direction to Resnik via junction R in the tunnel below Vidikovac and junction A near Kneževac, in the fifth direction to Rakovica via park B and junction R, in the sixth direction to Rakovica via park A and junction T, in the seventh direction to Rakovica via park B and junction T per second line and the eight towards direction to Jajinci. Belgrade marshalling yard consists of 120 railway tracks.
 Links: a. Jajinci railway station b. Makiš c. Belgrade d. Belgrade


Output: c