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: How old was the Cardinals right fielder when he retired? Passage:The new season brought a Cardinals team that was much changed from the one that went 100-62 in 2005 but fell to the Houston Astros in the NLCS. Starting pitcher Matt Morris, second baseman Mark Grudzielanek, left fielder Reggie Sanders, and relief pitcher Julián Tavárez left the team via free agency. Relief pitcher Ray King was traded to Colorado. Right fielder Larry Walker retired. Brought in to replace the departed Cardinals were right fielder Juan Encarnación, starting pitcher Sidney Ponson, relief pitchers Braden Looper and Ricardo Rincón, all via free agency, and second baseman Aaron Miles, acquired in the Ray King trade. Left field was left unsettled in the offseason and would remain so all year, with no player getting more than one-third of the playing time at that position.
 Links: a. Julián Tavárez b. Larry Walker c. Reggie Sanders d. Larry Walker

Output: b


Input: Consider Input: Question: How old was Rani when she made her film debut? Passage:Rani Mukerji is an Indian actress who has won several awards and nominations. She made her film debut with a supporting role in the Bengali film Biyer Phool (1996), which was directed by her father Ram Mukherjee. She made her Hindi debut with Raja Ki Aayegi Baraat in 1996, for which she received her first award at the Star Screen Awards for Best Fresh Talent. The following year she was featured in two successful films. For her third movie, Kuch Kuch Hota Hai (1998), she earned the award for Best Supporting Actress at the 44th Filmfare Awards. She also collected the Zee Cine Award for Best Actress in a Supporting Role and the Lux Face of the Year accolades at the Zee Cine Awards. Following this, she was signed on for several movies, some of which were critically and commercially successful films, such as Hey Ram (2000) which was chosen as India's official entry to the Oscars and Badal (2000) which was one of the highest-grossing films of that year.
 Links: a. Zee Cine Award for Best Actor in a Supporting Role – Female b. Raja Ki Aayegi Baraat c. Rani Mukerji d. Raja Ki Aayegi Baraat

Output: c


Input: Consider Input: Question: What year was the city founded where the German Sixth Army was encircled? Passage:As the German Sixth Army was encircled in Stalingrad, the Red Army undertook a series of wider attacks against the rest of Army Group South. These culminated on 2 January 1943 when the Red Army launched Operation Star and Operation Gallop, which between January and early February broke German defenses and led to the Soviet recapture of Kharkov, Belgorod, Kursk, as well as Voroshilovgrad and Izium. The Soviet victories caused participating Soviet units to over-extend themselves, though this was largely due to Manstein's strategy of controlled retreat towards the Dneiper. Freed on 2 February by the surrender of the German Sixth Army, the Red Army's Central Front turned its attention west and on 25 February expanded its offensive against both Army Group South and Army Group Center. Months of continuous operations had taken a heavy toll on the Soviet forces and some divisions were reduced to 1,000–2,000 combat effective soldiers. On 19 February, Field Marshal Erich von Manstein launched his Kharkov counterstrike, using the fresh II SS Panzer Corps and two panzer armies. Manstein benefited greatly from the massive air support of Field Marshal Wolfram von Richthofen's Luftflotte 4, whose 1,214 aircraft flew over 1,000 sorties per day from 20 February to 15 March to support the German Army, a level of airpower equal to that during the Case Blue strategic offensive a year earlier.
 Links: a. Case Blue b. Operation Star c. Battle of Stalingrad d. Battle of Stalingrad


Output: c