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: What was the score in Mannarino's loss in straight sets? Passage:The unseeded Mannarino reached his third career ATP World Tour singles final at the 2017 Antalya Open; he defeated two seeded players Borna Ćorić (in the first round) and Fernando Verdasco (in the quarterfinals) to advance to the final, where he lost to Yūichi Sugita in straight sets. At the Wimbledon Championships one week later, Mannarino upset no. 19 seed Feliciano López in the first round and no. 15 seed Gaël Monfils in the third round before losing to no. 2 seed Novak Djokovic in the fourth round. He reached his first career ATP World Tour Masters 1000 singles quarterfinal at the 2017 Rogers Cup, where he upset no. 6 seed and world no. 10 Milos Raonic in the second round before losing to Denis Shapovalov in the quarterfinals. The unseeded Mannarino defeated top seed and world no. 5 Marin Čilić (the biggest singles win of his career and his first career win over a member of the Top 5 in the ATP singles rankings) in the semifinals of the Japan Open to reach his first career ATP World Tour 500 Series singles final, where he lost to fourth-seeded David Goffin. In October, Mannarino reached his third ATP World Tour singles semi-final of 2017 at the Kremlin Cup, where he lost to Ričardas Berankis. The following week, the 7th seeded Mannarino lost in the quarterfinals of the Swiss Indoors to top seed Roger Federer in three sets.
 Links: a. Denis Shapovalov b. 2017 Antalya Open – Singles c. Denis Shapovalov d. Marin Čilić

Output: b


Input: Consider Input: Question: In what city did Harry Newman go to college? Passage:The 1935 NFL Championship Game was held on December 15, 1935, at University of Detroit Stadium (some sources call it Titan Stadium) in Detroit. The game was played in a snowstorm in front of 12,000 spectators. It was the 3rd annual title game for the NFL. The champion of the Western Division was the Detroit Lions (7–3–2) and the champion of the Eastern Division was the New York Giants (9–3). On the opening drive of the game, the Lions Glenn Presnell threw a 36-yard pass to Frank Christensen, and Ace Gutowsky threw another long pass to Ed Klewicki at the Giants' 8-yard line. Gutowsky then ran the ball into the end zone to give the Lions a 7–0 lead. The Lions scored again after Christensen intercepted a pass thrown by New York's Ed Danowski and ran it back to midfield. Three plays later, Dutch Clark ran 40 yards for a touchdown. In the fourth quarter, the Lions blocked a punt, and George Christensen recovered the ball on the Giants' 22-yard line. Ernie Caddel ran the ball in from the one-yard line for the Lions' third touchdown. The Lions added to their lead late in the game after Parker intercepted a pass from New York quarterback (and former University of Michigan star) Harry Newman on the Giants' 45-yard line and returned it to the nine-yard line. Buddy Parker ran for the touchdown as the Lions won the championship by a final score of 26–7.
 Links: a. Detroit Lions b. University of Michigan c. Ed Danowski d. University of Michigan

Output: b


Input: Consider Input: Question: What was the name of the person that created the Nazi secret police that took over Sajmište? Passage:After the April war of 1941 when Germany and its allies occupied and partitioned the Kingdom of Yugoslavia, entire Syrmia region (including the left bank of the Sava) became part of the Independent State of Croatia where they set the Ustaše regime. Nazi secret police, Gestapo, took over Sajmište. They encircled it with several rings of barbed wire turning it into what they referred to as "collection center" – a euphemism for a prison. It eventually became a concentration camp. Until May 1942 Germans used Sajmište concentration camp to mostly kill off Jews from Belgrade and other parts of Serbia. From April 1942 onwards, Serbian prisoners were transported in from Jasenovac and Stara Gradiška concentration camps run by ISC Croatian Ustaše. Partisans captured throughout Serbia were also sent to Sajmište. Detainees were also sent in from other parts of Yugoslavia, especially Serbs after major German offensives on briefly liberated territories. Executions of captured prisoners lasted as long as the camp existed. During their heavy “Easter bombing” of Belgrade, Allied aircraft bombed Sajmište on 17 April 1944, killing some 100 inmates and inflicting heavy damage on the camp itself, destroying all the buildings except for the Spasić pavilion and the Central tower..
 Links: a. Gestapo b. Jews c. Nazi Germany d. Gestapo


Output: a