Given the task definition and input, reply with output. 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.

Question: How many members did No. 11 Group have during the years of the Blitz? Passage 1:As a result of Hull finishing in fourth place in the Championship they qualified for the Football League play-offs. In the play-off semi finals Hull played against fifth placed team Derby County over two legs. The first leg was held on 14 May 2016 at Derby's Pride Park. Hull's top scorer Abel Hernandez was the first to score with a strike from 25 yards after half an hour. This was followed 10 minutes later with a shot by Moses Odubajo deflected in by defender Jason Shackell. Andrew Robertson completed the scoring with a late stoppage time goal to give Hull a 30 advantage going into the second leg at the KC Stadium on 17 May 2016. Derby got off to a great start with a goal from close range by Johnny Russell after 7 minutes. Their lead was doubled when a sliced ball by Andrew Robertson went into his own net 30 minutes later. Derby continued to press but Hull hung on to deny them any further scores. The match ended 20 to Derby, but Hull progressed 32 on aggregate, much to the relief of manager Steve Bruce who was in charge for the 200th time. The final, on 28 May 2016 at Wembley Stadium, was a local derby against Sheffield Wednesday who beat Brighton & Hove Albion 31 on aggregate in the other semi-final. Hull beat Sheffield Wednesday 10 in the final with the only goal coming from a 25-yard wonder strike by Mohamed Diame in the 72nd minute. The Tigers made an immediate return to the top flight and it was Bruce's fourth promotion to the Premier League as manager.
Passage 2:Duli Pengiran Muda Mahkota Football Club (His Royal Highness the Crown Prince of Brunei Football Club in English, commonly known as DPMM FC) is a professional football club based in Bandar Seri Begawan, Brunei. The club played in the Brunei Premier League in the early 2000s, winning the league title in 2002 and 2004. The club then decided to play in Malaysia, and joined the Malaysian Premier League as a foreign-based team in for the 200506 season. They won promotion to the Malaysian Super League (the top tier of Malaysian football) at the end of their first season in Malaysian football, and then finished 3rd and 10th in the following two season in the Super League. The club then left the Malaysian league and joined Singapore's Singapore Premier League for the 2009 season. They won the Singapore League Cup, but were then forced to withdraw from the league competition five games before the end of the season after FIFA suspended the Football Association of Brunei Darussalam for government interference in its affairs, thus barring teams from Brunei from taking part in overseas competitions. All the club's league results for 2009 were therefore expunged. At the end of the suspension, they re-entered the S.League and won the title in 2015, just after a near-miss in 2014.
Passage 3: the Second World War, the station was very active during the Battle of Britain and the Blitz in 194041 in No. 12 Group (controlled from RAF Watnall in Nottingham) as it was the main fighter station for a lot of the southern East Midlands, and fighters from the station would often patrol as far as Birmingham. During the Battle of Britain many squadrons were rotated through Wittering to spells in the south of England with No. 11 Group that was bearing the brunt of the battle. With many of the Luftwaffe raids during the Blitz taking part at night, Wittering-based squadrons were instrumental in the development of night combat techniques. These included the use of the Turbinlite aircraft which replaced the nose with a powerful searchlight insulated in the nose of Havocs and Bostons. In April 1943 No. 141 Squadron were moved in, operating de Havilland Mosquitoes. 1943 also saw the station host 2 USAAF squadrons, albeit temporarily: 63 Fighter Squadron USAAF with its P47s operated from Wittering between January and March before moving to RAF Horsham St Faith; 55 Fighter Squadron operated its P38s and P51s from Wittering between August and March 1944 before moving to nearby RAF Kingscliffe.
3