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 Warren Harding the year Coolidge was born? Passage:Calvin Coolidge (born John Calvin Coolidge Jr.; ; July 4, 1872 January 5, 1933) was an American politician and lawyer who served as the 30th president of the United States from 1923 to 1929. A Republican lawyer from New England, born in Vermont, Coolidge worked his way up the ladder of Massachusetts state politics, eventually becoming governor of Massachusetts. His response to the Boston Police Strike of 1919 thrust him into the national spotlight and gave him a reputation as a man of decisive action. The next year, he was elected vice president of the United States, and he succeeded to the presidency upon the sudden death of Warren G. Harding in 1923. Elected in his own right in 1924, he gained a reputation as a small government conservative and also as a man who said very little and had a rather dry sense of humor.
Links: a. Vice President of the United States b. Politics c. Boston Police Strike d. Warren G. Harding

Output: d

Input: Consider Input: Question: Which of Messner's teachers at the University of Munich was older? Passage:After Meissner's abitur at the Humanistisches Gymnasium, in 1910, he began the study of physics and mathematics at University of Tubingen. After three terms, he went to the University of Munich as a student of the experimentalist Wilhelm Rontgen and the theoretician Arnold Sommerfeld. After one year at Munich, he returned to Tubingen to be able to study spectroscopy with Friedrich Paschen. While still a student in 1914, Meissner was able to prove the existence of oxygen lines in the solar spectrum. He was awarded his doctorate in 1915, on a thesis with the title Interferometrische Wellenlangenbestimmung im infraroten Spektralbereich. In 1916 he became an assistant to Edgar Meyer at the University of Zurich, under whom he completed his Habilitation, in 1918, with the Habilitationsschrift title Untersuchungen des Neonspektrums. The following year, he married the Polish physicist Doctor Janka Kohn.
Links: a. Habilitation b. Ludwig Maximilian University of Munich c. University of Tubingen d. Wilhelm Rontgen

Output: d

Input: Consider Input: Question: In what year was the film released that dramatized the incident involving Bentley and Craig? Passage:One of the most notorious cases of this type was the 1952 case in England involving Derek Bentley, a mentally challenged man who was in police custody when his sixteen-year-old companion, Christopher Craig, shot and killed a police constable during a botched break-in. Craig was sentenced to be detained at Her Majesty's Pleasure, since as a juvenile offender he could not be sentenced to death (he was released after serving ten years), but Bentley was hanged despite popular protest. The incident was dramatized in the film Let Him Have It, which is what Bentley allegedly said to Craig during the incident, which can be interpreted either as telling Craig to shoot the policeman, or to give him the gun. The hanging of Bentley led to public outrage and sparked the MP Sydney Silverman's campaign to abolish capital punishment in the United Kingdom, achieved c. 1965.
Links: a. Capital punishment b. Hanging c. Hanging d. Let Him Have It
Output: d