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.

Ex Input:
Question: How old was Ibrahim Pasha the year the conquest of the Sudan began? Passage:The reign of Farouk was characterized by ever increasing nationalist discontent over the British occupation, royal corruption and incompetence, and the disastrous 1948 ArabIsraeli War. All these factors served to terminally undermine Farouk's position and paved the way for the revolution of 1952. Farouk was forced to abdicate in favor of his infant son Ahmed-Fuad who became King Fuad II, while administration of the country passed to the Free Officers Movement under Muhammad Naguib and Gamal Abdel Nasser. The infant king's reign lasted less than a year and on June 18, 1953, the revolutionaries abolished the monarchy and declared Egypt a republic, ending a century and a half of the Muhammad Ali Dynasty's rule. Emerging victorious from a war-triangle (Ottomans, Mamluks, and his loyal troops), Mehmed Ali made good use of Albanian irregulars services as mercenaries and troops to bolster his reign. Albanian mercenaries, or Arnauts, presented the backbone of Ali's army and were known as elite and undisciplined soldiers of the Ottoman Empire armies. With the rise of Muhammad Ali in power, many of them would settle in Egypt and serve there. By 1815, the number of Albanian military was over 7000. Albanian troops partook in the war against the Wahhabi movement in Arabia (181118) and in the conquest of the Sudan (182024). The number of Albanian troops would diminish in 1823, when Ibrahim Pasha, Ali's son, would join the Ottoman armies in the Greek War of Independence along with circa 17,000 men, many of them Albanians. Ali's dynasty would continue to rule Egypt until 1952.
Links: a. Free Officers Movement (Egypt) b. Egyptian revolution of 1952 c. Ibrahim Pasha of Egypt d. Free Officers Movement (Egypt)

Ex Output:
c

Ex Input:
Question: How many copies did "My Generation" sell the year it was released? Passage:A deliberate use of acoustic feedback was pioneered by Blues and Rock'n'Roll guitarists such as Willie Johnson, Johnny Watson and Link Wray. According to AllMusic's Richie Unterberger, the very first use of feedback on a commercial rock record is the introduction of the song "I Feel Fine" by the Beatles, recorded in 1964. Jay Hodgson agrees that it was the first chart-topper to showcase feedback distortion, created by John Lennon leaning a semi-acoustic guitar against an amplifier. The Who's 1965 hits "Anyway, Anyhow, Anywhere" and "My Generation" featured feedback manipulation by Pete Townshend, with an extended solo in the former and the shaking of his guitar in front of the amplifier to create a throbbing noise in the latter. Canned Heat's "Fried Hockey Boogie" (off of their 1968 album Boogie with Canned Heat) also featured guitar feedback produced by Henry Vestine during his solo to create a highly amplified distorted boogie style of feedback. In 1963, the teenage Brian May and his father custom-built his signature guitar Red Special, which was purposely designed to feed back.
Links: a. Anyway, Anyhow, Anywhere b. My Generation c. Boogie with Canned Heat d. Johnny "Guitar" Watson

Ex Output:
b

Ex Input:
Question: Where did the October 8th event that the Time Splitters lost to the Forever Hooligans take place? Passage:On August 26, 2012, Alex Shelley and A.J. Kirsch unsuccessfully challenged Forever Hooligans (Alex Koslov and Rocky Romero) for the IWGP Junior Heavyweight Tag Team Championship at a Sacramento Wrestling Federation (SWF) event in Gridley, California. Following the match, Kushida saved Shelley from a beatdown at the hands of Koslov and Romero. Shelley and Kushida began forming the tag team "Time Splitters" and scoring several wins over Koslov and Romero in multiple man teamed matches, after debuting their new double-team finishing maneuver, the I-94. On October 8 at King of Pro-Wrestling, Time Splitters unsuccessfully challenged Forever Hooligans for the IWGP Junior Heavyweight Tag Team Championship. On October 21, the Time Splitters entered the 2012 Super Jr. Tag Tournament, defeating Jado & Gedo in their first round match. On November 2, Shelley and Kushida defeated Suzuki-gun (Taichi and Taka Michinoku) to advance to the finals, where, later that same day, they defeated Apollo 55 to win the tournament and become the number one contenders to the IWGP Junior Heavyweight Tag Team Championship. On November 11 at Power Struggle, the Time Splitters defeated Forever Hooligans in a rematch to win the IWGP Junior Heavyweight Tag Team Championship. Time Splitters made their first successful title defense on February 10, 2013, at The New Beginning, defeating Forever Hooligans in the third title match between the two teams. Their second successful defense took place on March 3 at New Japan's 41st anniversary event, where they defeated Jyushin Thunder Liger and Tiger Mask. On April 5, Shelley received his first shot at the IWGP Junior Heavyweight Championship, but was defeated by the defending champion, Prince Devitt. Two days later at Invasion Attack, Time Splitters defeated Devitt and Ryusuke Taguchi for their third successful defense of the IWGP Junior Heavyweight Tag Team Championship. On May 3 at Wrestling Dontaku 2013, Time Splitters lost the IWGP Junior Heavyweight Tag Team Championship back to the Forever Hooligans in their fourth defense.
Links: a. Wrestling Dontaku 2013 b. King of Pro-Wrestling (2012) c. Forever Hooligans d. Alex Koslov

Ex Output:
b