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 is the oldest regular cast member of Stargate SG-1? Passage 1:Shalva was one of the most notable military commanders during a series of expansionist wars waged by the Kingdom of Georgia under Queen Tamar (r. 11841213). He consecutively held top posts of mechurchletukhutsesi (Lord High Treasurer) and mandaturtukhutsesi (Lord High Mandator) at Tamar's court. Together with his brother Ivane, Shalva was in command of vanguard traditionally composed of the Meschian troops from south Georgia. In the battle of Shamkor against the Ildenizid atabeg of Azerbaijan in 1195, he captured a war banner sent by the Caliph to the Muslim army which was then donated to the revered icon of Our Lady of Khakhuli. In 1206/1207, Shalva, together with Sargis Tmogveli, took hold of the city of Kars from the Seljuqs and was appointed as the governor of the Kars county.
Passage 2:The eighth season of Stargate SG-1, an American-Canadian military science fiction television series, began airing on July 9, 2004 on the Sci Fi channel. The eighth season concluded on February 22, 2005, after 20 episodes on British Sky One, which overtook the Sci Fi Channel in mid-season. This was the first season of the show to have 20 episodes instead of 22, as well as the first to air concurrently with Stargate SG-1 spinoff series Stargate Atlantis (the first season thereof). The series was originally developed by Brad Wright and Jonathan Glassner, while Brad Wright and Robert C. Cooper served as executive producers. Season eight regular cast members include Richard Dean Anderson, Amanda Tapping, Christopher Judge, and Michael Shanks. The eighth season begins with the SG-1 team trying to revive Colonel Jack O'Neill (Richard Dean Anderson) after the events of the seventh season. At the end of the two-episode season opener, Colonel O'Neill is promoted to General and assumes command of Stargate Command (SGC), while Major Samantha Carter (Amanda Tapping) is promoted to Lieutenant Colonel and assumes command of SG-1. The season arc centers on the growing threat and seemingly final defeat of the Goa'uld and the Replicators, races who were introduced in the first and third season of the show, respectively.
Passage 3:The Battle of Little Robe Creek (Also known as the Battle of Antelope Hills) was a battle fought between the Comanches' allies of the Kiowa and the Apache against the Texas Rangers with their allies the Tonkawa, Caddo, Anadarko, Waco, Shawnee, Delaware and Tahaucano. The Battle was the first battle in which the Texas Rangers were able to have enter the Comanche land of Comancheria. The United States rallied a force of 100 Texas Rangers and 113 allies where the Comanches rallied a force between the range of 200-600. In the battle there were three decisive battles between the Comanches and the Texas Rangers. The first began in the morning of May 12 when the Texas Rangers led by General Ford attacked a Comanche camp, the Comanches were not ready for such attack and a massacre occurred. The second battle began when the Texas Rangers attempted to do the same to the next Comanche camp only to be met by resistance from the Comanche's who saw the approach of the Texas Rangers. The Comanches at this point were able to act in defense but there was still a significant lose of life for the Comanches. It was not until the third and final battle of Little Robe creek where the Comanche warriors were able to take an offensive stance against the Texas Rangers. However, the end result of the three battles was costly to the Comanche forces: 76 were killed and over 60 were captured by the Texas Rangers. By comparison, the Texas Rangers lost two killed and only five wounded.
2