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: Which episode with Malohkeh had the highest ratings? Passage:Chibnall suggested including a "bonkers" gang of characters picked from around time and space. He felt that Doctor Who could have "collisions of characters that no other show in the world can do", and that it was about finding a "disparate" group of characters who would "bounce" off each other. Nefertiti's decision not to return to her own time fits in with the historical record, as the date and cause of her death are unknown. Chibnall asked to introduce Rory's father, as Amy and Rory would be leaving in four episodes and Rory's family life had not been explored yet. Mark Williams who played Rory's father previously appeared in the Fifth Doctor audio adventure The Eternal Summer. Rupert Graves, who played an Edwardian hunter in this episode, previously worked with Moffat on the BBC series Sherlock. David Bradley's character, Solomon, was modelled on a "well-known nightclub owner with long hair". Chibnall described him as "half businessman, half Somali pirate". Bradley and Williams had previously worked together on the Harry Potter film franchise. Bradley was later cast as the First Doctor William Hartnell for the 50th anniversary documentary drama An Adventure in Space and Time. Comedy duo Mitchell and Webb provided the voices of Solomon's two robots; executive producer Caroline Skinner called the casting choice "perfect". Richard Hope, who played the Silurian Bleytal, previously appeared as Malohkeh in the episodes "The Hungry Earth", "Cold Blood" and "The Wedding of River Song".
 Links: a. Richard Hope (actor) b. The Hungry Earth c. Mitchell and Webb d. Harry Potter (film series)

Output: b


Input: Consider Input: Question: Who is the current leader of the clan that ruled the Choshu domain? Passage:The area around present-day Atsugi city has been inhabited for thousands of years. Archaeologists have found ceramic shards from the Jōmon period at numerous locations in the area. By the Kamakura period, this area part of the Mōri shōen, part of the holdings of Ōe no Hiromoto. His descendants, the Mōri clan later ruled Chōshū domain. During the Kamakura period, the area was also known for its foundry industry for the production of bells for Buddhist temples. The area came under the control of the Ashikaga clan in the early Muromachi period and was later part of the territories of the Later Hōjō clan from Odawara. With the start of the Edo period, the area was tenryō territory controlled directly by the Tokugawa shogunate, but administered through various hatamoto, as well as exclaves under the control of Odawara Domain, Sakura Domain, Mutsuura Domain, Ogino-Yamanaka Domain and Karasuyama Domain. After the Meiji Restoration, the area was consolidated into Aikō District of Kanagawa Prefecture by 1876. Atsugi town was created on April 1, 1889 through merger of several small hamlets. Atsugi was elevated to city status on February 1, 1955 through merger with neighboring Mutsuai Village, Koaiyu Village, Tamagawa Village and Minamimori Village. The city expanded on July 8, 1958 through merger with neighboring Echi Village, and with Aikawa Village from Naka District. On September 30, 1956, Ogino Village joined with Atsugi. In April 2000, Atsugi exceeded 200,000 in population and was proclaimed a special city with increased autonomy from the central government.
 Links: a. Meiji Restoration b. Mōri clan c. Shōen d. Karasuyama Domain

Output: b


Input: Consider Input: Question: What is the name of John's paternal grandfather? Passage:Chanter was born in Panoomilloo near Rochester, Victoria and was the son of John Chanter and Mary Anne Clark. His father was a farmer and politician who represented the seats of Murray and Deniliquin in the Legislative Assembly between 1885 and 1901 as a Protectionist. He held ministerial office as the Secretary of Mines in the government of George Dibbs. John Chanter, sr. was also the member for Riverina in the Australian House of Representatives at various times between 1901 and 1922. He was a member of the Protectionist Party until 1909, the Australian Labor Party and, after the Labor Party split of 1916, the Nationalist Party. John Chanter Jr. was educated at the State Primary School Moama. He established a sawmilling business in Barham and a wheat farm in Tongala. In 1927 he moved permanently to New South Wales and became a prominent wheat farmer in Lake Cargelligo. Chanter was involved in local organizations in Tongala and Lake Cargellico including the show societies, Wheatgrowers Union and Freemasons. He was elected to the position of councillor for Deakin Shire in Victoria between 1919 and 1926 and was the shire president in 1925–26. He was also elected to Lachlan Shire Council in New South Wales between 1928 and 1945 and was the president in 1940-1.
 Links: a. Lachlan Shire b. Barham, New South Wales c. Lake Cargelligo, New South Wales d. John Chanter


Output: d