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.

Example Input: Question: How many years after the Beach Boys released "Don't Worry Baby" did Roger Christian pass away? Passage:During a vocal tracking session in which Manson was singing over music already written for "Push It", the band felt that one of the lines in "Push It" would benefit from having a vocal chorus answering the words back to her. Inspired by Manson's spontaneous ad-lib of the phrase "don't worry baby" over the music, guitarist Steve Marker sampled the Beach Boys song "Don't Worry Baby" and used it as a backing vocal. The sample didn't work with what the band had already recorded so Manson re-sang the lines to fit the key and tempo of the song. Aware of the potential for incurring copyright legalities, the band debated whether or not to keep the line. Garbage and Brian Wilson coincidentally shared the same publishing company (Irving Music), and figuring that they had nothing to lose, contacted him through their company representative, sent him a copy of "Push It", and asked him for permission to use the interpolation. Wilson gave his blessing, and reportedly kept the tape. Both Wilson and Roger Christian, the deceased co-writer of "Don't Worry Baby", received a writing credit. A simpler interpolation credit was given to Herbie Azor, as the band's lawyers felt that there was a possible similarity of the line "Push it!" to his own "Push It", which had been a hit single for New York hip hop trio Salt-N-Pepa.
 Links: a. Music publisher (popular music) b. The Beach Boys c. Music publisher (popular music) d. Don't Worry Baby
Example Output: d

Example Input: Question: What is Lorraine Copeland's field of study? Passage:It was first studied by Lorraine Copeland and Peter Wescombe in 1965–1966. A wide variety of materials were recovered from the site and its immediate area that are now held in the Saint Joseph University in Beirut. Stone tools from the surface included numerous short, wide, sickle blades with fine denticulation or nibbling along with tanged arrowheads, scrapers, chisels, axes, burins, obsidian and a small green stone axe. Pottery resembled middle periods at Byblos and coloured similar to at Ard Tlaili with red or black washes. Both fine and coarse shards were found of jars with a variety of collared and flared necks and flat bases along with bow rims such as those found at Jericho. Vessels were decorated with stabbed and incised designs, finger pressed around the rim and smoothed by hand or with straw. A painted lattice pattern was detected on at least one piece. Comparisons were made with middle and late Neolithic periods at Byblos showing inhabitation from several phases. The site was also used in Bronze Age and Classical times and material from these phases has been found over a wide area around the site.
 Links: a. Beirut b. Lorraine Copeland c. Axe d. Arrowhead
Example Output: b

Example Input: Question: What rules surround Alejandro's role when he signed with Toronto FC in 2019? Passage:On 4 March 2019, Pozuelo signed with Major League Soccer side Toronto FC as a designated player, as a replacement for the recently departed Sebastian Giovinco and compatriot Víctor Vázquez in the creative midfield role, also inheriting the number ten shirt which had previously been worn by the Italian. He made his debut late in the same month in a 4–0 home win over New York City FC, assisting the opening goal of the match by teammate Jozy Altidore and later scoring two himself—one from the penalty spot Panenka-style and one chipped over the goalkeeper; he finished as the team's top scorer in the regular season with 12 goals, while also adding 12 assists.
 Links: a. Panenka (penalty kick) b. Designated Player Rule c. New York City FC d. Squad number (association football)
Example Output:
b