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.
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Question: Question: What was the original name of the Suzba Bezpieczenstwa? Passage:On 30 June 1943 he was arrested by the Gestapo in Warsaw and sent to Berlin. Rowecki was arrested due to his betrayal by Ludwik Kalkstein "Hanka", Eugeniusz Swierczewski "Genes" and Blanka Kaczorowska "Sroka" who were Gestapo agents. All of them were members of the Home Army but in fact collaborated with the Gestapo. Swierczewski, Kalkstein and Kaczorowska were sentenced to death for high treason by the Secret War Tribunal of the Polish Secret State. The sentence on Eugeniusz Swierczewski was carried out by troops commanded by Stefan Rys ("Jozef"). They hanged Swierczewski in the basement of the house at 74 Krochmalna Street in Warsaw. Kalkstein received protection from the Gestapo and was not harmed. He fought in a Waffen SS unit during the Warsaw Uprising of 1944 under the name of Konrad Stark. After the war, he worked for the Polish Radio station in Szczecin and was later recruited as an agent by the Urzad Bezpieczenstwa. In 1982, he emigrated to France; he died in 1994. Blanka Kaczorowska also survived the war. Her death sentence was not carried out because she was pregnant. After the war, she also worked as a secret agent for the Urzad Bezpieczenstwa and later for the renamed Suzba Bezpieczenstwa. She emigrated to France in 1971. She died in 2002
Links: a. Home Army b. Ludwik Kalkstein c. Suzba Bezpieczenstwa d. Warsaw Uprising

Answer: c

Question: 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 50.6days and is used to treat bone cancer due to strontium's chemical similarity and hence ability to replace calcium. While Sr (half-life 28.90years) 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 30,000km 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

Answer: d

Question: Question: How many years after Nathaniel Treat's descendant passed away did Nathaniel marry Mary Parker? Passage:Treat was born in Frankfort, Maine on December 29, 1798. He was a descendant of Robert Treat. In 1823, Treat married Mary P. Parker. They had ten children, including Joseph B. Treat, who became a member of the Wisconsin State Senate and chairman of the Republican State Central Committee. Treat built sawmills, served as a bank president, and became involved in the lumber industry. His former home in Orono, Maine, now known as the Nathaniel Treat House, is listed on the National Register of Historic Places. In 1870, Treat moved to Monroe, Wisconsin, where he died on February 4, 1894. His grandson, Charles Treat, became a major general in the United States Army. Treat and his family were Universalists.
Links: a. Robert Treat b. Republican Party of Wisconsin c. Wisconsin State Senate d. Frankfort, Maine

Answer:
a