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: How old is the oldest championship that O'Keeffe won? Passage:Declan O'Keeffe (born 1972 in Rathmore, County Kerry) is a former Irish sportsperson. He played Gaelic football at various times with his local clubs Rathmore in Kerry and Clooney/Quin and St Josephs Doora-Barefield in Clare. He was a member of the Kerry senior inter-county team from 1996 until 2003. He won All-Ireland Senior Football Championships in 1997 & 2000. He also won an All-Ireland Junior Football Championship in 1994. He won Munster Under-21 Football Championship medals in 1992 and 1993, and a Munster Minor Football Championship medal in 1990. He won an International Rules in 1999 and a Railway Cup. He won 3 County Championships with East Kerry in 1997, 1998 and 1999.
Links: a. East Kerry GAA b. Munster Minor Football Championship c. Kerry GAA d. East Kerry GAA

Ex Output:
b

Ex Input:
Question: Which is the oldest city that borders Garden Grove? Passage:West Grove, officially recognized as the West Grove Business District by the City of Garden Grove, and sometimes called West Garden Grove, is a neighborhood in the city of Garden Grove, located in Orange County, California, United States. West Grove encompasses the pene-exclave western portion of the city of Garden Grove. It is bordered to the north by Cypress, to the west by Los Alamitos and Seal Beach, to the south by Westminster, and to the east by Stanton, and connected to the rest of Garden Grove by a narrow strip along Garden Grove Boulevard. It includes the entire 92845 ZIP Code, which is designated as the areas west of Knott Avenue to the Seal Beach and Los Alamitos city borders, and the industrial area east of Knott Avenue to the Stanton border. The community is more "affluent" than the rest of Garden Grove, with a median income $25,000 greater than the main body of the city. There is also less crime, a lower poverty rate, and the population density is lower compared to the rest of Garden Grove. As of the 2010 Census, 16,333 people reside in West Grove.
Links: a. Orange County, California b. Cypress, California c. Garden Grove, California d. Garden Grove, California

Ex Output:
b

Ex Input:
Question: Which of Haywood's compatriots who made broadcast from Madrid is the oldest? Passage:Haywood's military career included service in three wars. His interest in military combat began when his friends recalled tales of their service in the Eighth Illinois, Black National Guard Regiment. During World War I, he served with the Eighth Regiment, a black United States regiment. In the Spanish Civil War, like many Americans there, he fought for the Popular Front with the Abraham Lincoln Battalion of the International Brigades. Haywood held the position of Regimental Commissar in the XV International Brigade during the Battle of Brunete. While in Spain he, Langston Hughes and Walter Benjamin Garland broadcast from Madrid in support of the Republican cause. During World War II, he served in the Merchant Marine, where he was active with National Maritime Union.
Links: a. Langston Hughes b. Popular Front (Spain) c. Langston Hughes d. Langston Hughes

Ex Output:
a