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: How old was Alexander's wife when they got married? Passage:Ancient historians, as well as modern ones, have also written on Alexander's marriage to Roxana the beautiful [Persian]n woman. Robin Lane Fox writes, "Roxana was said by contemporaries to be the most beautiful lady in all Asia. She deserved her name of Roshanak, meaning 'little star', (probably rokhshana or roshana which means light and illuminating) in Persian. Marriage to a local noble's family made sound political sense, but contemporaries implied that Alexander, aged 28, also lost his heart. A wedding-feast for the two of them was arranged high on one of the Persian rocks. Alexander and his bride shared a loaf of bread, a custom still observed in Turkestan. Characteristically, Alexander sliced it with his sword. Ulrich Wilcken writes, "The fairest prize that fell to him was Roxana, the daughter of Oxyartes, in the first bloom of youth, and in the judgment of Alexander's companions, next to Stateira the wife of Darius, the most beautiful woman that they had seen in Asia. Alexander fell passionately in love with her and determined to raise her to the position of his consort."
Links: a. Roxana b. Oxyartes c. Asia d. Roshanak

Output: a

Input: Consider Input: Question: During which centuries were the Kyoto Imperial Palace and the Sento Imperial Palace home to the Emperors of Japan? Passage:With its 2,000 religious places 1,600 Buddhist temples and 400 Shinto shrines, as well as palaces, gardens and architecture intact it is one of the best preserved cities in Japan. Among the most famous temples in Japan are Kiyomizu-dera, a magnificent wooden temple supported by pillars off the slope of a mountain; Kinkaku-ji, the Temple of the Golden Pavilion; Ginkaku-ji, the Temple of the Silver Pavilion; and Ryoan-ji, famous for its rock garden. The Heian Jingu is a Shinto shrine, built in 1895, celebrating the Imperial family and commemorating the first and last emperors to reside in Kyoto. Three special sites have connections to the imperial family: the Kyoto Gyoen area including the Kyoto Imperial Palace and Sento Imperial Palace, homes of the Emperors of Japan for many centuries; Katsura Imperial Villa, one of the nation's finest architectural treasures; and Shugaku-in Imperial Villa, one of its best Japanese gardens. In addition, the temple of Sennyu-ji houses the tombs of the emperors from Shijo to Komei.
Links: a. List of emperors of Japan b. List of emperors of Japan c. Kyoto Imperial Palace d. Kinkaku-ji

Output: c

Input: Consider Input: Question: Which of the armies involved in the Action of 22 Augst 1917 had more men? Passage:The Action of 22 August 1917, took place in the First World War, in the Ypres Salient on the Western Front during the Third Battle of Ypres. The engagement was fought by the Fifth Army of the British Expeditionary Force and the German 4th Army. During the Battle of Langemarck (1618 August), the British had advanced north of the village but had been defeated further south and failed to capture the , the third German defensive position. At a conference with the Fifth Army corps commanders on 17 August, Gough arranged for local attacks to gain jumping-off positions for another general attack on 25 August. At the Action of the Cockcroft on 19 August, XVIII Corps and the 1st Tank Brigade had captured five fortified farms and strongpoints for a fraction of the casualties of a conventional attack.
Links: a. Fifth Army (United Kingdom) b. 4th Army (German Empire) c. Battle of Langemarck (1917) d. British Expeditionary Force (World War I)
Output: a