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.

Q: Question: How many people died in the incident that contaminated about 30,000 km?  Passage:Natural strontium is a mixture of four stable isotopes: Sr, Sr, Sr, and Sr. Their abundance increases with increasing mass number and the heaviest, Sr, makes up about 82.6% of all natural strontium, though the abundance varies due to the production of radiogenic Sr as the daughter of long-lived beta-decaying Rb. Of the unstable isotopes, the primary decay mode of the isotopes lighter than Sr is electron capture or positron emission to isotopes of rubidium, and that of the isotopes heavier than Sr is electron emission to isotopes of yttrium. Of special note are Sr and Sr. The former has a half-life of 50.6 days and is used to treat bone cancer due to strontium's chemical similarity and hence ability to replace calcium. While Sr (half-life 28.90 years) has been used similarly, it is also an isotope of concern in fallout from nuclear weapons and nuclear accidents due to its production as a fission product. Its presence in bones can cause bone cancer, cancer of nearby tissues, and leukemia. The 1986 Chernobyl nuclear accident contaminated about 30,000 km with greater than 10 kBq/m with Sr, which accounts for 5% of the core inventory of Sr.
 Links: a. Rubidium b. Mass number c. Electron capture d. Chernobyl disaster

A: d
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Q: Question: How much older is Tom Selleck than the the actress who played his love interest on Blue Bloods? Passage:In 1999, Moniz landed a role in the primetime CBS drama pilot Partners. In the same year, she starred as the female lead in the critically acclaimed television film adaptation of Mitch Albom's book Tuesdays with Morrie. She later was a series regular in the short-lived NBC comedy series Battery Park opposite Elizabeth Perkins. In fall of 2000, Moniz was cast as a series regular in the role of Rachel McCabe in the sixth and final season of the CBS series Nash Bridges. She later starred as Louisa "Lulu" Archer on the CBS series The Guardian opposite Simon Baker. The series aired from 2001 to 2004. Moniz guest starred in an episode of the NBC legal drama Law & Order in 2005, and had a recurring role as Stacey Walker in the ABC short-lived comedy-drama Big Shots in 2007. She later appeared as Jill Burnham on the FX series Damages from 2009 to 2010. In 2010 she was cast as Tom Selleck's love interest in the CBS police drama Blue Bloods, but the role was recast with Andrea Roth. She later appeared in the recurring role of Llanview Mayor Finn - who succeeds the exiting Mayor Dorian Lord on the ABC daytime soap opera One Life to Live in 2011. She also appeared in the ABC series 666 Park Avenue in 2012.
 Links: a. Dorian Lord b. Tom Selleck c. Tom Selleck d. NBC

A: b
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Q: Question: How many total awards were given out during the ceremony three weeks earlier? Passage:The 67th Academy Awards ceremony, organized by the Academy of Motion Picture Arts and Sciences (AMPAS) took place on March 27, 1995, at the Shrine Auditorium in Los Angeles beginning at 6:00 p.m. PST / 9:00 p.m. EST. During the ceremony, AMPAS presented Academy Awards (commonly referred to as the Oscars) in 23 categories honoring the films released in 1994. The ceremony, televised in the United States by ABC, was produced by Gilbert Cates and directed by Jeff Margolis. Comedian David Letterman hosted the show for the first time. Three weeks earlier in a ceremony held at the Regent Beverly Wilshire Hotel in Beverly Hills, California on March 4, the Academy Awards for Technical Achievement were presented by host Jamie Lee Curtis.
 Links: a. Beverly Wilshire Hotel b. Jamie Lee Curtis c. American Broadcasting Company d. Academy Award for Technical Achievement

A:
d
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