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: When was the man whose name is used as the unit of radio wave frequency born?  Passage:A modulated radio wave, carrying an information signal, occupies a range of frequencies. See diagram. The information (modulation) in a radio signal is usually concentrated in narrow frequency bands called sidebands (SB) just above and below the carrier frequency. The width in hertz of the frequency range that the radio signal occupies, the highest frequency minus the lowest frequency, is called its bandwidth (BW). A given amount of bandwidth can carry the same amount of information (data rate in bits per second) regardless of where in the radio frequency spectrum it is located, so bandwidth is a measure of information-carrying capacity. The bandwidth required by a radio transmission depends on the data rate of the information (modulation signal) being sent, and the spectral efficiency of the modulation method used; how much data it can transmit in each kilohertz of bandwidth. Different types of information signals carried by radio have different data rates. For example, a television (video) signal has a greater data rate than an audio signal.
 Links: a. Data signaling rate b. Carrier wave c. Hertz d. Audio signal
Example Output: c

Example Input: Question: How old was Jacques Cartier when he named Baie des Chaleurs? Passage:Bathurst had been the location of the annual Mi'kmaq summer coastal community of Nepisiguit prior to European settlement. Europeans first reached the shores of the Baie des Chaleurs when in 1534 it was named by Jacques Cartier. Early settlers from France came to the area in the 17th century in what became part of the colony of Acadia. In 1607 Samuel de Champlain sailed into the Miramichi, and in 1636, Nicolas Denys was granted a seignory by the French crown, apparently the third grant in the colony of Acadie. Jean Jacques Enaud, who hailed from the French Basque Country, was granted in 1638 the seignory at the southeastern gap of the harbor later named Alston Point. Remark is made on William Francis Ganong's map of Bathurst Harbour, depicted here at left, of the residence of Nicolas Denys and the seignory of Gobin.
 Links: a. Nicolas Denys b. Miꞌkmaq c. Jacques Cartier d. Nicolas Denys
Example Output: c

Example Input: Question: Where was Hardy's first WWF opponent born? Passage:Hardy cites Sting, The Ultimate Warrior, and Shawn Michaels as his childhood inspirations to wrestle. He started on World Wrestling Federation (WWF) television as a jobber—a wrestler who consistently loses to make his opponents look stronger. His first WWF match was against Razor Ramon on May 23, 1994 in Youngstown, Ohio, with Randy Savage mentioning on commentary, "Welcome to the big time". His ringname that night, Keith Davis, was the name of Razor's scheduled jobber, who backed out on short notice. Gary Sabaugh, who had brought Hardy in a group along with Davis, suggested him to agent Tony Garea, who agreed after Hardy claimed he was 18 (he was in fact, only 16). The next day, he wrestled under his real name against The 1–2–3 Kid, and the match aired on the June 25 episode of Superstars. He occasionally wrestled as a jobber as late as 1997 (including a match against Rob Van Dam during the ECW "invasion" storyline that had Hardy billed as being from Virginia instead of Cameron, North Carolina) before beginning his first major run in 1998.
 Links: a. WWF Superstars of Wrestling b. Randy Savage c. Scott Hall d. Cameron, North Carolina
Example Output:
c

