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 high is the gamma radiation from nuclear fuel? Passage:The nuclear fuel elements were made of refractory ceramic based on beryllium oxide, with enriched uranium dioxide as fuel and small amount of zirconium dioxide for structural stability. The fuel elements were hollow hexagonal tubes about long with distance between the outer parallel planes, with inside diameter of . They were manufactured by high-pressure extruding of the green compact, then sintering almost to its theoretical density. The core consisted of 465,000 individual elements stacked to form 27,000 airflow channels; the design with small unattached elements reduced problems related with thermal stresses. The elements were designed for average operation temperature of ; the autoignition temperature of the reactor base plates was only 150 °C higher. The neutron flux was calculated to be 9×10 neutrons/(cm·s) in the aft and 7×10 neutrons/(cm·s) in the nose. The gamma radiation level was fairly high due to the lack of shielding; radiation hardening for the guidance electronics had to be designed.
 Links: a. Beryllium oxide b. Radiation hardening c. Nuclear fuel d. Radiation hardening

Output: c


Input: Consider Input: Question: Who was the head coach of the Italian national cricket team when they played Hong Kong in Australia? Passage:After playing club cricket in England and Ireland from 2004 to 2006. Northcote qualified to play for Italy though his Italian mother, with Northcote making his debut for Italy against Hong Kong in the 2007 World Cricket League Division Three which was held in Northern Territory, Australia. He played six matches during the tournament, scoring 91 runs at an average of 18.20, with a high score of 47. With the ball, he took 7 wickets at a bowling average of 19.00, with best figures of 3/26. He played for Italy in the 2008 European Cricket Championship Division One, but has relinquished the captaincy back to Scuderi. He made five appearances during the tournament. He was then selected as part of Italy's squad for the 2008 World Cricket League Division Four in Tanzania, making six appearances. He scored 234 runs during the tournament, at an average of 58.50, with a high score of 102 not out. This score was his only century of the tournament and came against Fiji. With the ball, he took 2 wickets at a bowling average of 35.00, with best figures of 2/19.
 Links: a. 2007 ICC World Cricket League Division Three b. Italy national cricket team c. Italy national cricket team d. Fiji national cricket team

Output: b


Input: Consider Input: Question: When was the player that Shawn Bradley was traded to the New Jersey for drafted into the NBA? Passage:The 1995–96 NBA season was the 76ers 47th season in the National Basketball Association, and 33rd season in Philadelphia. During the offseason, the Sixers signed free agent Vernon Maxwell, then later on signed second-year guard Trevor Ruffin in December. Top draft pick Jerry Stackhouse and Clarence Weatherspoon both provided a nice young nucleus from which to build. However, finding talent to surround them was often difficult, as the Sixers suffered an 11-game losing streak after a 2–2 start. Early into the season, Shawn Bradley was traded to the New Jersey Nets for Derrick Coleman, who only played in just eleven games due to an irregular heartbeat. At midseason, second-year forward Sharone Wright was dealt to the expansion Toronto Raptors as Jeff Malone was released to free agency. The Sixers had their worst season since the infamous 73-loss 1972–73 season, finishing last place in the Atlantic Division with an 18–64 record. 
 Links: a. 1972–73 Philadelphia 76ers season b. 1972–73 Philadelphia 76ers season c. 1995–96 Toronto Raptors season d. Derrick Coleman


Output: d