In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.

[EX Q]: Question: Which power-switching election in the 1970s had more total votes? Passage 1:Secretary of State for Employment and Productivity Barbara Castle introduced an Employed Persons (Health and Safety) Bill in 1970 but the debate around the Bill soon generated a belief that it did not address fundamental issues of workplace safety. In the same year, the Occupational Safety and Health Act was passed into United States federal law. As a result, a committee of inquiry chaired by Lord Robens was established towards the end of Harold Wilson's first government. When the Conservative Party came to power following the 1970 United Kingdom general election, they gave Castle's Bill no parliamentary time, preferring to wait for the Robens Report which was published in 1972. Conservative Secretary of State for Employment William Whitelaw introduced a new Bill on 28 January 1974 but Labour were returned to power in the February 1974 United Kingdom general election and the Bill again lost. The new Labour administration finally secured the passage of a Bill that year.
 Passage 2:June started with striker Mark Stewart having the second year of his contract cancelled. Following this Turnberry Homes signed a new two-year deal to continue as the club's shirt sponsors. Bobby Barr became the club's second signing of the summer, joining on a year long deal from Raith Rovers. Ross Forbes was announced as the club's third summer signing on 11 June - signing a season long deal nine years after a loan spell with the club. A day later the club's top scorer from the 2017–18 season, Calum Gallagher, signed a new one-year deal. The week ended with Grant Adam becoming the club's fourth signing of the summer, joining on a one year deal from Forfar Athletic. His arrival was followed by that of striker Rory Loy, who joined after leaving Falkirk, however Danny Handling turned down a new deal with the club to join Scottish League Two side Edinburgh City. Stuart Carswell was the next player to commit himself for another season, signing a new one-year deal after 54 appearances and two goals in his 18 months at the club. The following week defenders Ross Perry and Cammy Ballantyne signed for the club on year-long deals, and they were joined by Ryan Thomson who joined after leaving Stranraer. A day after signing Thomson marked his debut with a goal, which was added to by strikes from Calum Gallagher and Iain Russell (playing as a trialist) as Dumbarton overcame Lowland League side East Kilbride in their first friendly of the season.
 Passage 3:His career in entertainment started in 2005 He first starred in an indie film Matthew, Mark, Luke and John  until GMA Network discovered his potential in acting. He debuted in television when he became one of the members of the cast of Daisy Siete: Isala Chikita which aired on GMA-7. He got a cameo role in Tope Lee's Quija a horror movie produced by GMA Films and released in 2007, he was also cast as David in Green Paradise co-star with Cristine Reyes. In 2008 Serrano had as a recurring role of Babangon Ako't Dudurugin Kita, a remake of a Sharon Cuneta movie, which aired on GMA Network. He starred in Joel Lamangan's film Heavenly Touch with Joash Balejado, and Marco Morales in a lead role. He also joined the cast of Una Kang Naging Akin which is also a remake flicks series. In 2009 Serrano appeared as a guest star in ABS-CBN television drama Tayong Dalawa in three episodes.

[EX A]: 1

[EX Q]: Question: Which of the two units held in reserve had more soldiers? Passage 1:As designed in 1931, the He 46 was a two-seat sesquiplane of mixed construction. The upper wing was swept back 10°. This is a common trick when a change in an aircraft's design moves the center of gravity to the rear; rather than moving the whole wing back to counter for the shift, it is easier to simply angle the wings back slightly, which requires very little change to the basic design, or even the overall structure of the wing. (The similarly angled wings on the Fairey Swordfish are due to just such a mid-program change to the weight distribution of the aircraft.) The tailplane was mounted high and braced by struts. The undercarriage was fixed, and the tail was fitted with a skid rather than a wheel. The He 46 prototype first flew in late 1931; its flight characteristics were good, but design improvements were incorporated. The small lower wing was removed, while the mainplane was increased in area by 22% and braced to the fuselage, transforming the He 46 into a parasol-wing monoplane. A more powerful engine was added to the second prototype, and a single 7.92 mm (.312 in) MG 15 machine gun for the rear seat was added to the third prototype.
 Passage 2:In planning for the actual attack, Manteuffel had divided his 5th Panzer Army into three corps composed of infantry, tanks, and supporting artillery. The main effort, or schwerpunkt, would consist of XLVII Panzer Corps and LVIII Panzer Corps advancing west across the River Our at Ouren from the south or left flank of the German army front. They would then occupy the transportation center of Bastogne, before crossing the Meuse River at Namur. The third group, LXVI Corps, would advance west on either side of the Schnee Eifel. This northernmost, or right wing, element would flank and begin an envelopment of the American forces occupying fortifications on the Schnee Eifel and then converge on the town of Winterspelt. From there, LXVI Corps would cross the Our river and occupy St. Vith on the first day of the attack. LXVI Corps was the weakest of the three corps, with no attached tank division or motor transport, but did include an attached assault gun battalion. The Panzer Lehr Division (Armor Demonstration Division) and the Führer Begleit Brigade (Führer Escort Brigade) were to be held in reserve, with the Führer Begleit only usable with Model's express permission. Manteuffel's preference for the "little slam", or limited solution, was reflected in the absence of planning beyond reaching the Meuse River.
 Passage 3:On 7 October 1593, the superintendent of the Venetian Republic founded a revolutionary new kind of settlement: Palmanova. The city’s founding date commemorated the victory of the Christian forces (supplied primarily by the Italian states and the Spanish kingdom) over the Ottoman Turks in the Battle of Lepanto in 1571, during the War of Cyprus. Also honored on 7 October was Saint Justina, chosen as the city's patron saint. Using all the latest military innovations of the 16th century, this small town was a fortress in the shape of a nine-pointed star, designed by Vincenzo Scamozzi. Between the points of the star, ramparts protruded so that the points could defend each other. A moat surrounded the town, and three large, guarded gates allowed entry. The construction of the first circle, with a total circumference of , took 30 years. Marcantonio Barbaro headed a group of Venetian noblemen in charge of building the town, Marcantonio Martinego was in charge of construction, and Giulio Savorgnan acted as an adviser. A second phase of construction took place between 1658 and 1690, and the outer line of fortifications was completed between 1806 and 1813 under the Napoleonic domination. The final fortress consists of: 9 ravelins, 9 bastions, 9 lunettes, and 18 cavaliers.

[EX A]: 2

[EX Q]: Question: How long had Bristol City F.C. been a team when Ball scored his first goal for the senior team? Passage 1:In July 2011, Ball signed a new three-year contract, which extended his stay at the Pride Park club until at least 2014. Ball scored his first senior goal for the club in a 2–1 win at home to Bristol City on 10 December 2011. Ball then scored the opening goal of the game against West Ham which was a great curling effort form the edge of the area after being played in by Nathan Tyson, this was the second former England goal keeper (Robert Green) he had scored against after scoring his first goal against David James. Ball scored his 3rd goal for derby, which proved to be the winner against Coventry City, once again this proved to be a goal against an internationally capped goal keeper in Joe Murphy who at the time had been capped twice by the Republic of Ireland. Ball became a regular in the Rams matchday 16 until he picked up an ankle injury in a reserves game against Belper Town on 26 March 2012. Ball returned from injury a 3–2 reserve win against Sunderland Reserves in the Totesport Cup semi-final game on 19 April 2012, playing the whole 90 minutes in central defence.
 Passage 2:Following his completion of secondary school, Demiéville spent time studying in Munich, London, and Edinburgh, where he was able to attend lectures by George Saintsbury at the University of Edinburgh. He then attended the University of Paris, where he wrote an essay on the musical suite of the 17th and 18th centuries and was awarded a licentiate degree in 1914. Demiéville then spent the year 1915 studying at King's College London where he was introduced to Chinese, which quickly became his focus. After returning to France, Demiéville studied at the École des Langues Orientales Vivantes (School of Living Oriental Languages), after which he moved to the Collège de France, where he further studied Chinese under the tutelage of Édouard Chavannes and began learning Sanskrit from Sylvain Lévi. He earned his Diplômé from the École des Langues Orientales Vivantes in 1919.
 Passage 3:At the time of his ordeal, Berk was the regional dean of the Texas Tech medical branch in Amarillo, but on August 1, 2006, he was moved to the high position at the Lubbock campus. There are two other branch campuses in Odessa and El Paso. At the time of his abduction, Berk was at home on Sunday morning with his younger son, Justin. The older son, Jeremy, was away in college. Berk's wife, Shirley H. Berk (born c. 1950), a microbiologist who had served on a school board while they lived in Johnson City, Tennessee, was at church. The culprit, Jack Lindsey Jordan (born in 1963 in Seminole, Texas), gained entry from an open rear garage door and an unlocked back entrance to the residence. Normally, both the garage and the back door would have been locked. Jordan demanded money and jewelry to pay for transportation and narcotics, particularly methamphetamines, as he proceeded along Interstate 40 west toward New Mexico. After being held for four hours in Jordan's vehicle on a cool, windy day, common to the Panhandle in March, Berk was released unharmed near a gasoline station in rural Bushland in southwestern Potter County. This life-threatening event propelled the physician to write about his ordeal. He interlaces the narrative with much of his life story, from his birth in New York City, his childhood in New Jersey, his medical education at Boston University School of Medicine, his work in the fields of infectious diseases,geriatrics, and internal medicine at the East Tennessee State University James H. Quillen College of Medicine in Johnson City, and his relocation to Amarillo, his adopted city which he had grown to love. Since the events of 2005, Dr. Berk has been transferred to the main medical campus in Lubbock.

[EX A]:
1