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: Which former Digital Equipment Corporation who worked for Microsoft is the oldest? Passage:In November 1988, a new development team within Microsoft (which included former Digital Equipment Corporation developers Dave Cutler and Mark Lucovsky) began work on a revamped version of IBM and Microsoft's OS/2 operating system known as "NT OS/2". NT OS/2 was intended to be a secure, multi-user operating system with POSIX compatibility and a modular, portable kernel with preemptive multitasking and support for multiple processor architectures. However, following the successful release of Windows 3.0, the NT development team decided to rework the project to use an extended 32-bit port of the Windows API known as Win32 instead of those of OS/2. Win32 maintained a similar structure to the Windows APIs (allowing existing Windows applications to easily be ported to the platform), but also supported the capabilities of the existing NT kernel. Following its approval by Microsoft's staff, development continued on what was now Windows NT, the first 32-bit version of Windows. However, IBM objected to the changes, and ultimately continued OS/2 development on its own.
 Links: a. Software portability b. 32-bit c. 32-bit d. Dave Cutler

Output: d


Input: Consider Input: Question: Which team won the Rose Bowl the year that Vols lost the Orange Bowl? Passage:The 1997 Tennessee Volunteers football team represented the University of Tennessee during the 1997 NCAA Division I-A football season. Quarterback Peyton Manning had already completed his degree in three years, and had been projected to be the top overall pick in the 1997 NFL Draft, but returned to Tennessee for his senior year. The Volunteers opened the season with victories against Texas Tech and UCLA, but for the third time in his career, Manning fell to Florida, 33–20. The Vols won the rest of their regular season games, finishing 10–1, and advanced to the SEC Championship Game against Auburn. Down 20–7, Manning led the Vols to a 30–29 victory. Throwing for four touchdowns, he was named the game's MVP, but injured himself in the process. The #3 Vols were matched up with #2 Nebraska in the Orange Bowl. Had Tennessee won and top-ranked Michigan lost to Washington State in the Rose Bowl, the Vols would have been expected to win the national championship. However, the Vols' defense could not stop Nebraska's rushing attack, giving up more than 400 yards on the ground in a 42–17 loss. As a senior, Manning won numerous awards. He was a consensus first-team All-American and won the Maxwell Award, the Davey O'Brien Award, the Johnny Unitas Award, and the Best College Football Player ESPY Award, among others. However, he did not win the Heisman Trophy, finishing runner-up to Charles Woodson, a CB from Michigan, and the only defensive player ever to win the Heisman Trophy.
 Links: a. 1997 Florida Gators football team b. 1997 Washington State Cougars football team c. 1997 Nebraska Cornhuskers football team d. 1997 Michigan Wolverines football team

Output: d


Input: Consider Input: Question: Did Tan Dun write any music the year Liao made his debut at the Washington National Opera? Passage:In 2000 Liao made his debut at the Washington National Opera as the Count di Luna in Verdi's Il trovatore at the Kennedy Center with Plácido Domingo conducting. In 2001 he portrayed Enzo in Attila with the Opera Orchestra of New York (OONY) at Carnegie Hall, and was heard again with that ensemble the following year as Captain Israele in Gaetano Donizetti's Marino Faliero. In 2002 he sang the role of Méphistophélès in Berlioz's La damnation de Faust with the China Philharmonic Orchestra. In 2003 he made his debut at the Dutch National Opera as the Japanese Prince in Tan Dun's . That same year he made his debut with the Michigan Opera Theater as the Count di Luna, and was also seen with that company as Renato in Un ballo in maschera. In 2004 he sang the role of Pasha Seid in Verdi's Il corsaro with the OONY under Eve Queler at Carnegie Hall.
 Links: a. Tan Dun b. Il trovatore c. Il corsaro d. John F. Kennedy Center for the Performing Arts


Output: a