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: Did the Michigan coach that retired after 2007 or his successor have a better overall win-loss record at the school? Passage:Fred Jackson (born June 9, 1950) is an American football coach and former player. He was previously the running backs coach at the University of Michigan. In 2014, he was the longest tenured member of the Michigan Wolverines football coaching staff, having been with the program since 1992. Jackson served on the staffs of Gary Moeller, Lloyd Carr, Rich Rodriguez, and Brady Hoke. In addition to coaching running backs, Jackson served as Michigan's offensive coordinator (1995–1996), assistant head coach (1997–2002), and associate head coach (2003–2007). He was a finalist for the Broyles Award, given annually to the nation's top college football assistant coach, in 2000. After Michigan head coach Lloyd Carr retired following the 2007 season, Jackson was the only member of the coaching staff retained by Carr's successor, Rich Rodriguez. When Rodriguez was fired after the 2010 season, Jackson was the only member of Rodriguez's staff retained by his successor, Brady Hoke. Hoke and Jackson served as assistants together under Carr and Gary Moeller for a total of eight years including the 1997 national championship season.
 Links: a. Broyles Award b. Brady Hoke c. Rich Rodriguez d. Lloyd Carr

Ex Output:
d


Ex Input:
Question: Which county that I-24 goes through has the highest population? Passage:I-24 continues southeast through the rapidly growing suburbs of Nashville, and crosses into Rutherford County near the city of LaVergne, where there are three exits. Beginning at this point, I-24 is relatively straight and flat for most of its distance through Middle Tennessee. The straightest stretch of highway in Tennessee is located on I-24 between Lavergne and eastern Murfreesboro, where the route is perfectly straight for about fifteen miles, although the median widens and narrows. Four miles later is an interchange with SR 102, which connects to Smyrna and the Nissan Motor Manufacturing Plant. Another four miles later is an interchange with Interstate 840, the outer southern beltway around Nashville, and I-24 enters Murfreesboro, the largest suburb of Nashville. In Murfreesboro, I-24 has interchanges with SR 96 (which connects of Franklin), SR 99 (New Salem Highway), and US 231 (which connects to Lebanon and Shelbyville), respectively, and at the final Murfreesboro exit (US 231), the HOV lane designation ends, and I-24 narrows to six lanes and then four lanes a short distance later. Three miles later is an interchange with the Joe B. Jackson Parkway, which serves as an outer beltway around southeast Murfreesboro. I-24 then enters a more rural area, and at exit 97 has an interchange with SR 64, which connects to Shelbyville. I-24 then curves to the south, then the east, briefly enters Bedford County, and then Coffee County. At exit 105 is an interchange with US 41, and five miles later I-24 enters Manchester, where it has interchanges with SR 53, SR 55, and US 41, respectively. I-24 continues through a rural, largely agricultural area where it crosses into Grundy County and has an interchange with US 64 and SR 50.
 Links: a. Rutherford County, Tennessee b. Tennessee State Route 53 c. Nissan d. Lebanon, Tennessee

Ex Output:
a


Ex Input:
Question: Which of the singles from Twilight Sad's second studio album charted the highest? Passage:The discography of Scottish rock band The Twilight Sad consists of five studio albums, four compilation albums, fifteen singles, and five extended plays (EPs). The band currently consists of James Graham (vocals, lyrics), Andy MacFarlane (guitar, production), Johnny Docherty (bass), Brendan Smith (keyboards) and Sebastien Schultz (drums). The Kilsyth-based band formed in 2003 and were signed to Fat Cat Records when Alex Knight, co-founder of the label, went to Glasgow to watch the band perform their third gig and signed them on the spot. The band released their debut EP The Twilight Sad in November 2006 in the United States only, followed by their debut album Fourteen Autumns & Fifteen Winters in April 2007, which garnered widespread critical acclaim. The album spawned two singles, "That Summer, at Home I Had Become the Invisible Boy" in April, and "And She Would Darken the Memory" in July. The following year, the band released Here, It Never Snowed. Afterwards It Did, a mini-album of reworked versions of songs from Fourteen Autumns & Fifteen Winters and two non-album tracks, inspired by stripped-down live performances. A collection of live versions and previously unreleased tracks entitled Killed My Parents and Hit the Road was released in December 2008. The Twilight Sad's second studio album, Forget the Night Ahead, was released in September 2009 to further acclaim and marked a shift in the band's direction towards a darker and more streamlined sound. The album produced three singles: "I Became a Prostitute" in August 2009, "Seven Years of Letters" in October 2009, and "The Room" in April 2010. Founding bassist Craig Orzel left the band in February 2010, and the band released The Wrong Car EP in September of that year.
 Links: a. United States b. Kilsyth c. Rock music d. I Became a Prostitute

Ex Output:

d