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 Q]: 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 Nusslein-Volhard b. Lewis Wolpert c. Lewis Wolpert d. Transcription factor
[EX A]: a

[EX Q]: Question: Who was older when Heitler obtained his doctorate, Arnold Sommerfeld or Karl Herzfeld? Passage:In 1922, Heitler began his study of physics at the Karlsruhe Technische Hochschule, in 1923 at the Humboldt University of Berlin, and in 1924 at the Ludwig Maximilian University of Munich (LMU), where he studied under both Arnold Sommerfeld and Karl Herzfeld. The latter was his thesis advisor when he obtained his doctorate in 1926; Herzfeld taught courses in theoretical physics and one in physical chemistry, and in Sommerfeld's absence often took over his classes. From 1926 to 1927, he was a Rockefeller Foundation Fellow for postgraduate research with Niels Bohr at the Institute for Theoretical Physics at the University of Copenhagen and with Erwin Schrodinger at the University of Zurich. He then became an assistant to Max Born at the Institute for Theoretical Physics at the University of Gottingen. Heitler completed his Habilitation, under Born, in 1929, and then remained as a Privatdozent until 1933. In that year, he was let go by the university because he was Jewish.
Links: a. University of Gottingen b. Ludwig Maximilian University of Munich c. Arnold Sommerfeld d. Arnold Sommerfeld
[EX A]: c

[EX Q]: Question: Who was the first tag team to win the IWRG Intercontinental Tag Team Championship? Passage:In 1999 IWRG introduced Mega and Super Mega, a team called Los Megas, a group of masked, brightly colored kid-friendly tecnico characters. They later added Ultra Mega to the group, making them a regular trio. At the very first El Castillo del Terror event Super Mega lost his mask, but the trio remained together. Los Megas defeated Los Oficiales (Guardia, Oficial and Vigilante) on August 2, 2001 to win the Distrito Federal Trios Championship, starting off a 161-day-long title reign. The trio was defeated for the title by Dr. Cerebro, Cirujano and Paramedico on January 10, 2002. Only a month later Mega and Ultra Mega defeated Fantasy and Star Boy to win the IWRG Intercontinental Tag Team Championship. They team held the title for 73 days until losing to MAZADA and NOZAWA. Around that time Super Mega left IWRG to work for Consejo Mundial de Lucha Libre, which caused IWRG to bring in Omega to keep Los Megas a trio.
Links: a. Distrito Federal Trios Championship b. Consejo Mundial de Lucha Libre c. IWRG Intercontinental Tag Team Championship d. Distrito Federal Trios Championship
[EX A]:
c