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.

Example Input: Question: What other artists collaborated on the soundtrack DJ Quik worked on shortly before his friend Mausberg died? Passage:In 1998 Quik released Rhythm-al-ism his fourth studio album on Profile Records. This record was certified Gold in 1999, and contained the singles "Hand in Hand (featuring 2nd II None and El Debarge) and "You'z A Ganxta." It featured guest appearances by Nate Dogg, Snoop Dogg, AMG and Suga Free. That year he went on to produce for The Luniz, Shaquille O'Neal, Deborah Cox and Jermaine Dupri. He also produced on The Kingdom Come by rapper King Tee which ultimately never came out due to label problems. He also faced personal and professional tragedy when his nephew murdered his close friend and protégé Darryl Cortez Reed in 1998. In 1999, there was the release of Classic 220 by 2nd II None, in which Quik played a huge part. Production on Gap Band's Y2K: Funkin' Till 2000 Comz album, Snoop Dogg's No Limit Top Dogg,  and Deep Blue Sea (soundtrack). This was compounded by the death of another friend and rapper Mausberg, subsequently murdered in 2000. That year, saw the release of rapper Mausberg's album, and DJ Quik's Balance & Options. Also production with Whitney Houston, Erick Sermon, 8Ball & MJG, Xzibit and AMG.
 Links: a. Deep Blue Sea (soundtrack) b. Deborah Cox c. Xzibit d. Snoop Dogg
Example Output: a

Example Input: Question: In what year was the re-recording of No One Is to Blame featuring Phil Collins released? Passage:In 1985, Jones released his second studio album, Dream into Action, which included backup work by the trio Afrodiziak. Afrodiziak included Caron Wheeler and Claudia Fontaine. His brother Martin played bass guitar. He had to have an extra string added to his instrument to play some of the bass lines, which had originally been scored for keyboard. One of the album's tracks, "No One Is to Blame", was later re-recorded, featuring Phil Collins as drummer and producer, and performing backing vocals. (This second version appears on Jones's U.S. EP "Action Replay, and also on the following LP One to One). Jones's most successful album, Dream Into Action was popular worldwide; it reached number two in the UK and number 10 in the US and remained on the US chart for almost a year. The singles "Life In One Day", "Things Can Only Get Better", and "Look Mama" appeared on this album. In July 1985, Jones performed at Wembley Stadium as part of the Live Aid concert, singing his 1984 hit "Hide and Seek" and playing piano. He also embarked on a world tour.
 Links: a. Things Can Only Get Better (Howard Jones song) b. No One Is to Blame c. Claudia Fontaine d. Claudia Fontaine
Example Output: b

Example Input: Question: Who was the perpetrator of the event that caused the capital to be in mourning? Passage:On May 10, United States President Andrew Johnson had declared that the rebellion and armed resistance was virtually at an end, and had made plans with government authorities for a formal review to honor the troops. One of his side goals was to change the mood of the capital, which was still in mourning following the assassination of United States President Abraham Lincoln a month before at Ford's Theater. Three of the leading Federal armies were close enough to participate in the procession. The Army of the Tennessee arrived via train. The Army of Georgia, also under the command of William T. Sherman, had just completed its Carolinas Campaign and had accepted the surrender of the largest remaining Confederate army, that of Joseph E. Johnston. It arrived from North Carolina in mid-May and camped around the capital city in various locations, across the Potomac River from the Army of the Potomac, fresh off its victories over Robert E. Lee in Virginia. It had arrived in Washington on May 12. Officers in the three armies who had not seen each other for some time (in some cases since before the war) communed and renewed acquaintances, while at times, the common infantrymen engaged in verbal sparring (and sometimes fisticuffs) in the town's taverns and bars over which army was superior. Sherman, concerned that his Westerners would not present as polished an image as the eastern army, drilled his forces and insisted that uniforms be cleaned, buttons and brass shined, and that bayonets glistened.
 Links: a. Assassination of Abraham Lincoln b. Campaign of the Carolinas c. President of the United States d. Robert E. Lee
Example Output:
a