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: Who does Sierra Rose think is her father? Passage 1:In November 1942, American and British forces landed in North Africa under Operation Torch. Allied thrusts overran Vichy French Morocco and Algeria and advanced into Tunisia. The danger for the Axis Powers was now apparent. The Allied forces advancing eastward and the British 8th Army advancing westward after the victory at the Second Battle of El Alamein, would trap and destroy the remaining Axis forces in North Africa. In response to the crisis, and the poor state of Axis forces, reinforcements for the German Afrika Korps, Italian Army and Luftwaffe were dispatched by sea and air. These reinforcements duly staved off an immediate defeat in Tunisia, the last region still in Axis hands. The poor state of the roads and rail lines in Algeria meant that Allied forces faced difficult logistic challenges which enabled the Axis to prolong a defence. The inexperience of U.S. forces was also apparent at the Battle of the Kasserine Pass. Nevertheless, the growing number and experience of Allied forces squeezed the Axis toward the northern tip of Tunisia. The Royal Air Force (RAF) and Royal Navy operating from Malta took a heavy toll of Axis shipping. However, Axis supplies were still reaching the besieged Afrika Korps by air. By early April, large quantities of Axis manpower was also being evacuated by air. Although the Allies held air superiority by this time, Luftwaffe transports were operating with impunity during darkness.
Passage 2:The 1966 NBA draft was the 20th annual draft of the National Basketball Association (NBA). The draft was held on May 11 and 12, 1966 before the 196667 season. In this draft, ten NBA teams took turns selecting amateur U.S. college basketball players. A player who had finished his four-year college eligibility was eligible for selection. If a player left college early, he would not be eligible for selection until his college class graduated. The first two picks in the draft belonged to the teams that finished last in each division, with the order determined by a coin flip. The New York Knicks won the coin flip and were awarded the first overall pick, while the Detroit Pistons were awarded the second pick. This draft was the first to use the coin flip method, which replace the territorial pick rule. The remaining first-round picks and the subsequent rounds were assigned to teams in reverse order of their winloss record in the previous season. An expansion franchise, the Chicago Bulls, took part in the NBA Draft for the first time and were assigned the last pick of each round. The draft consisted of 19 rounds comprising 112 players selected.
Passage 3:Stacy Morasco, younger sister to Gigi, is first seen on February 6, 2009 as a Las Vegas stripper named "Gigi." She begins spying on Gigi and Rex Balsom, later following them back to Llanview. Gigi is thrilled to see her, but devastated by the news that their parents had died in a car crash years before, and Stacy's own struggles since. Stacy makes fast friends with Gigi and Rex's son Shane, although Gigi is somewhat uncomfortable with Stacy's influence. Gigi also begins to suspect that her sister is trying to seduce Rex. After Shane is diagnosed with leukemia in March 2009, Stacy learns of a matching donor. Wanting Rex for herself, she pretends that she is the match and forces Gigi to break up with Rex in exchange for her blood. Shane receives the transplant and improves, but Gigi is afraid to reveal Stacy's blackmail in case Shane needs more of her stem cells. Eventually, Gigi tells the truth, but in the meantime Stacy and Rex have slept together. Rex and Gigi reunite as Stacy's blackmail is revealed. Rex spurns Stacy, but she discovers that she is pregnant. She miscarries but keeps the truth from Rex knowing that it is her only hold over him. Stacy calls her stripper best friend Kimberly Andrews to come to Llanview, who comes up with a plan to help get Stacy pregnant again to pass the baby off as Rex's. She drugs ex-boyfriend Schuyler Joplin but he refuses her. She becomes pregnant after seducing a drunken Oliver Fish. In November 2009 Schuyler finds out that Stacy lost her baby with Rex, and Kim tells Schuyler that he is the baby's father. Schuyler agrees to keep the truth from Rex so that he can have Gigi for himself. In January 2010 Rex's crazed biological father Mitch Laurence tries to kidnap Stacy to raise her baby as his heir. Kim and Stacy tells Schuyler to steal a drug called oxytocin so Stacy can give birth a month before her due date to pass the baby as Rex's. On February 2, 2010 Stacy is kidnapped by Mitch Laurence. When she reveals that the baby is not Rex's, Mitch abandons Stacy in a blizzard. Gigi finds her, takes her to a cabin, and on February 11, 2010 helps Stacy deliver a baby girl she names Sierra Rose. On February 16, 2010, Stacy falls through the ice of a frozen lake; despite Rex and Oliver's attempts to save her, she disappears beneath the ice and is presumed dead. Days later, Stacy's spirit appears to Kim several times to get Kim's assurance that she will do all she can to care for Sierra.
3