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: What was the film debut of the actor who played Peter Fox? Passage:Dr. John Rollason (Peter Cushing), his wife, Helen (Maureen Connell), and assistant, Peter Fox (Richard Wattis), are guests of the Lama (Arnold Marlé) of the monastery of Rong-buk while on a botanical expedition to the Himalayas. A second expedition, led by Dr. Tom Friend (Forrest Tucker) accompanied by trapper Ed Shelley (Robert Brown), photographer Andrew McNee (Michael Brill) and Sherpa guide Kusang (Wolfe Morris), arrives at the monastery in search of the legendary Yeti or Abominable Snowman. Rollason, despite the objections of his wife and the Lama, decides to join Friend's expedition. Whereas Rollason is motivated by scientific curiosity to learn more about the creature, Friend seeks fame and fortune and wants to capture a live Yeti and present it to the world's press.
 Links: a. Maureen Connell b. Richard Wattis c. Lama d. Himalayas

Ex Output:
b


Ex Input:
Question: How old was Nusslein-Volhard when she won the Nobel Prize in Physiology and Medicine? Passage:The concept of the morphogen has a long history in developmental biology, dating back to the work of the pioneering Drosophila (fruit fly) geneticist, Thomas Hunt Morgan, in the early 20th century. Lewis Wolpert refined the morphogen concept in the 1960s with the French flag model, which described how a morphogen could subdivide a tissue into domains of different target gene expression (corresponding to the colours of the French flag). This model was championed by the leading Drosophila biologist, Peter Lawrence. Christiane Nusslein-Volhard was the first to identify a morphogen, Bicoid, one of the transcription factors present in a gradient in the Drosophila syncitial embryo. She was awarded the 1995 Nobel Prize in Physiology and Medicine for her work explaining the morphogenic embryology of the common fruit fly. Groups led by Gary Struhl and Stephen Cohen then demonstrated that a secreted signalling protein, Decapentaplegic (the Drosophila homologue of transforming growth factor beta), acted as a morphogen during the later stages of Drosophila development.
 Links: a. Christiane Nüsslein-Volhard b. Lewis Wolpert c. Lewis Wolpert d. Transcription factor

Ex Output:
a


Ex Input:
Question: Why type of sport were the St. George Illawarra Dragons and the Wests Tigers playing in their match that ended 34-22? Passage:The Dragons U20s side were strong off from the start. For the Toyota Cup inaugural season, the Dragons Under-20s Side is coached by Steven Price. Before the regular season began, the Dragons won a Toyota Cup Trial match against the Bulldogs down at WIN Stadium in Wollongong. They started the regular season disappointing with a 34-22 loss to the Wests Tigers. However, the Dragons have not lost another match after that with 1 bye in their past leaving them on top of the Toyota Cup table, on 22 competition points. Their 10-match winning streak came to an end in Round 13 at WIN Stadium when they drew 22 all with the Brisbane Broncos. While the First Grade side continued their winning streak, the Under 20s were looking to start a losing streak as they were defeated back-to-back for the first time this year by the Penrith Panthers 28-26 in Round 15 at ANZ Stadium and 32-16 by the Gold Coast Titans at Skilled Park on the Gold Coast. They returned to the winners circle in Round 17 defeating the Newcastle Knights 26-18 at EnergyAustralia Stadium. In Round 18, straight after a fresh win, they once again lost a match this time against the Canberra Raiders 38-28 at WIN Stadium. They then had back and forth wins during the regular season keeping them in the top 8, struggling to keep their spot(s).
 Links: a. Wests Tigers b. Wollongong Showground c. Brisbane Broncos d. Newcastle Knights

Ex Output:

a