instruction:
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.
question:
Question: Who was older, Tian Chengsi or Li Baochen? Passage:By 775, one of the military governors who had only nominally been submissive to Emperor Daizong, Tian Chengsi the military governor of Weibo Circuit (, headquartered in modern Handan, Hebei), had particularly offended not only the imperial government but also his fellow warlordsby seizing much of Zhaoyi Circuit (, headquartered in modern Anyang, Henan) after the death of its military governor Xue Song in 773; by looking down on Li Zhengji the military governor of Pinglu Circuit (, headquartered in modern Tai'an, Shandong) and Li Baochen the military governor of Chengde (, headquartered in modern Shijiazhuang, Hebei); and by killing Li Baochen's brother Li Baozheng (), who was also his son-in-law, after his own son Tian Wei () died after colliding with Li Baozhen while playing polo. Li Baochen and Li Zhengji thus offered to attack Tian, and Emperor Daizong decided to take this opportunity to destroy the rebellious Tian. As Zhu Tao was then submissive to the imperial government, he joined forces with Li Baochen and another general loyal to the imperial government, Xue Jianxun (), to attack Weibo from the north, while Li Zhengji and Li Zhongchen attacked from the south. The joint forces had initial successes, but when Zhu and Li Baochen attacked Cang Prefecture (, in modern Cangzhou, Hebei), which was defended by Tian's cousin Tian Tingjie (), they could not capture it quickly. Meanwhile, Tian Chengsi had persuaded Li Zhengji to withdraw with flattery. In addition, Li Baochen was offended when an imperial eunuch, Ma Chengqian (), who had visited Li Baochen's army, was so dissatisfied with Li Baochen's gift to him that he threw it on the ground, and Tian was also able to use hoaxes to persuade Li Baochen that if he joined forces with Tian to attack Lulong, he would be successful. Li Baochen thus turned against Zhu, launching a surprise attack on him, but was unable to kill Zhu, effectively ending any hopes of the campaign against Tian and subsequently creating an enmity between the Chengde and Lulong Circuits. Emperor Daizong was subsequently forced to reaccept Tian Chengsi's nominal submission.
Links: a. Tai'an b. Polo c. Shandong d. Li Baochen
answer:
d

question:
Question: Where was Sale's first husband born? Passage:On June 21, 2012, Simpson married Canadian figure skater Jamie Sale, whom he had "known for years from the Edmonton skating scene". They had been paired as partners in late 2009 for the first season of the CBC show Battle of the Blades, which they won. Simpson and Sale have one daughter, Samantha Rae Simpson, born on July 7, 2013. Through this marriage, Simpson is also a stepfather to Sale's son Jesse Pelletier (born September 30, 2007), from her first marriage to skating partner David Pelletier. He also has three children from a previous marriage, including son Dillon, who was drafted by the Edmonton Oilers in the 4th round of the 2011 NHL Entry Draft and is currently a defenseman for the Bakersfield Condors.
Links: a. David Pelletier b. Canadian Broadcasting Corporation c. David Pelletier d. Battle of the Blades (season 1)
answer:
a

question:
Question: How old was the artist who recorded "Any Ol' Barstool" when it was released? Passage:"Any Ol' Barstool" is a song written by Deric Ruttan and Josh Thompson and recorded by American country music artist Jason Aldean. It was released in December 5, 2016 by Broken Bow Records as the third single from Aldean's seventh album They Don't Know (2016). "Any Ol' Barstool" gave Aldean his thirteenth number-one hit on the US Billboard Country Airplay chart and his eleventh top 5 hit on the Hot Country Songs chart. It also reached outside the top 50 on the Hot 100 chart. The song achieved similar chart success in Canada, reaching number one on the Canada Country chart and number 100 on the Canadian Hot 100 chart. It was certified Gold by Music Canada for selling over 40,000 units in that country. An accompanying music video for the single, directed by Shaun Silva, features Aldean playing in an empty bar against the story of a quarreling couple.
Links: a. Jason Aldean b. Jason Aldean c. Jason Aldean d. Billboard Hot 100
answer:
a