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 person who influenced Abani to join the revolutionary movement when they met? Passage:In 1914, Mukherji met Rash Behari Bose and joined the revolutionary movement. In 1915, he was sent to Japan to acquire weapons for the revolutionaries. According to British intelligence reports, he was active in the Hindu–German conspiracy. In September 1915, while on his return journey to India, he was arrested in Singapore and incarcerated at the Fort Canning prison there, where he remained until he escaped in the autumn of 1917. The exact details of his escape are unclear. Mukherji managed to reach Java in the Dutch East Indies, where he stayed until the end of 1919, living under the name of Dar Shaheer. In Java, he was in contact with Indonesian and Dutch revolutionaries and became a communist. He also travelled to Amsterdam and back. In Amsterdam, he met S.J. Rutgers, who recommended him as a delegate to the Second Congress of the Communist International.
 Links: a. Rash Behari Bose b. Singapore c. S. J. Rutgers d. Communism

Output: a


Input: Consider Input: Question: Was his mother still alive when Benigno Simeon Aquino III took the oath? Passage:By tradition, it is also the chief justice who swears into office the President of the Philippines. One notable deviation from that tradition came in 1986, and later again in 2010. Due to the exceptional political circumstances culminating in the People Power Revolution, on February 25, 1986, Corazon Aquino took her oath of office as President before then Associate Justice Claudio Teehankee in San Juan just minutes before Ferdinand Marcos took his own oath of office also as President before Chief Justice Ramon Aquino. Marcos fled into exile later that night. More than two decades afterwards, Benigno Simeon Aquino III followed in his mother's footsteps (with almost similar reasons) by having then Associate Justice Conchita Carpio-Morales to administer his oath of office, rather than then Chief Justice Renato Corona (who was eventually impeached halfway through Aquino's term). Six years later, in 2016, Rodrigo Duterte took his oath of office before Associate Justice Bienvenido Reyes, his classmate at San Beda College of Law, instead of Chief Justice Maria Lourdes Sereno (who would eventually be removed thru quo warranto after it was determined that she had been unlawfully holding office ab initio).
 Links: a. Ferdinand Marcos b. Corazon Aquino c. Rodrigo Duterte d. Corazon Aquino

Output: b


Input: Consider Input: Question: When was the school at which Brillouin studied physics founded? Passage:From 1908 to 1912, Brillouin studied physics at the École Normale Supérieure, in Paris. From 1911 he studied under Jean Perrin until he left for the Ludwig Maximilian University of Munich (LMU), in 1912. At LMU, he studied theoretical physics with Arnold Sommerfeld. Just a few months before Brillouin's arrival at LMU, Max von Laue had conducted his experiment showing X-ray diffraction in a crystal lattice. In 1913, he went back to France to study at the University of Paris and it was in this year that Niels Bohr submitted his first paper on the Bohr model of the hydrogen atom. From 1914 until 1919, during World War I, he served in the military, developing the valve amplifier with G. A. Beauvais. At the conclusion of the war, he returned to the University of Paris to continue his studies with Paul Langevin, and was awarded his Docteur ès science in 1920. Brillouin's thesis jury was composed of Langevin, Marie Curie, and Jean Perrin and his thesis topic was on the quantum theory of solids. In his thesis, he proposed an equation of state based on the atomic vibrations (phonons) that propagate through it. He also studied the propagation of monochromatic light waves and their interaction with acoustic waves, i.e., scattering of light with a frequency change, which became known as Brillouin scattering.
 Links: a. Valve amplifier b. Paul Langevin c. École normale supérieure (Paris) d. Niels Bohr


Output: c