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: What rules surround Alejandro's role when he signed with Toronto FC in 2019? Passage 1:After leaving the PS along with Jean-Luc Mélenchon to co-found the Left Party, Marc Dolez left the Socialist, Radical, Citizen and Miscellaneous Left group to join the GDR group as an associate deputy before becoming a member on 27 January 2009. On 11 July 2010, Anny Poursinoff of the Greens was elected in a by-election in Yvelines's 10th constituency, defeating Jean-Frédéric Poisson, thus becoming the 26th member of the GDR group. On 1 September 2010, the Green deputy Yves Cochet took over the presidency of the GDR group. Maxime Gremetz was expelled from the group on 12 April 2011 after interrupting a parliamentary meeting about the Fukushima Daiichi nuclear disaster, and subsequently resigned from his seat on 16 May. Cochet left the GDR group on 6 December after being designated as an MEP, and was replaced by Roland Muzeau; this decision reflected the dissatisfaction of the Left Front at the decision of their ecologist partners, now known as Europe Ecology – The Greens (EELV), to present a common candidate with the PS against incumbent François Asensi in Seine-Saint-Denis's 11th constituency. The four ecologist deputies subsequently left the GDR group, Cochet departing on 6 December to take his seat as an MEP and the three others quitting on 7 December. Jacques Desallangre left the group on 17 February 2012.
 Passage 2:On 4 March 2019, Pozuelo signed with Major League Soccer side Toronto FC as a designated player, as a replacement for the recently departed Sebastian Giovinco and compatriot Víctor Vázquez in the creative midfield role, also inheriting the number ten shirt which had previously been worn by the Italian. He made his debut late in the same month in a 4–0 home win over New York City FC, assisting the opening goal of the match by teammate Jozy Altidore and later scoring two himself—one from the penalty spot Panenka-style and one chipped over the goalkeeper; he finished as the team's top scorer in the regular season with 12 goals, while also adding 12 assists.
 Passage 3:The Pittsburgh Steelers compete in the National Football League (NFL) as a member club of the American Football Conference (AFC) North division. Founded in 1933, the Steelers are the oldest franchise in the AFC; seven franchises in the National Football Conference (NFC) have longer tenures in the NFL. The team struggled to be competitive in its early history, posting winning records in just 8 of its first 39 seasons. Since the AFL–NFL merger in 1970, however, it has appeared in eight Super Bowls and one of only two teams, along with the New England Patriots have won the Super Bowl six times. The six championships place the Steelers fourth in the league in terms of total championships (including those prior to the first Super Bowl), trailing only the Green Bay Packers (13 championships), the Chicago Bears (9) and the New York Giants (8). The club's 15 AFC Championship Game appearances are second all-time, behind the Patriots (16). In addition, they have hosted the second-most conference championship games (11) than any franchise in either conference, and are tied for second with the Dallas Cowboys and Denver Broncos with eight Super Bowl appearances; the Patriots currently hold the record of eleven appearances, as of 2019.
2