Question: Grand Theft Auto: The Ballad of Gay Tony was an expansion for the game published by which company?

full_context: Document 1: List of Grand Theft Auto: San Andreas characters: "" is an open world action adventure video game that was first released in 2004. "San Andreas" is part of the "Grand Theft Auto" video game franchise, developed by Rockstar Games and is the fourth installment in the third generation of the series. As with previous installments, "San Andreas" features several major, supporting and minor characters. Many high-profile celebrities have voiced these characters in the game including crime film veterans, Samuel L. Jackson, James Woods, Frank Vincent and Peter Fonda and prominent west coast rappers, MC Eiht, Ice-T, Frost and The Game.
Document 2: Grand Theft Auto: The Ballad of Gay Tony: Grand Theft Auto: The Ballad of Gay Tony is the second of the two episodic expansion packs available for the PlayStation 3, Microsoft Windows and Xbox 360 versions of "Grand Theft Auto IV", developed by Rockstar North. It was first released for the Xbox 360 on 29 October 2009, before then being released for the PlayStation 3 and Microsoft Windows on 13 April 2010. It is the fourth expansion pack in the "Grand Theft Auto" series and the 14th release on the series.
Document 3: Grand Theft Auto III: Grand Theft Auto III is an open world action-adventure third-person shooter video game developed by DMA Design and published by Rockstar Games. It was released in October 2001 for the PlayStation 2, in May 2002 for Microsoft Windows, and in October 2003 for the Xbox. A remastered version of the game was released on mobile platforms in 2011, for the game's tenth anniversary. It is the fifth title in the "Grand Theft Auto" series, and the first main entry since 1999's "Grand Theft Auto 2". Set within the fictional Liberty City, based on New York City, the game follows Claude after he is left for dead and quickly becomes entangled in a world of gangs, crime and corruption.
Document 4: Grand Theft Auto V: Grand Theft Auto V is an action-adventure video game developed by Rockstar North and published by Rockstar Games. It was released on 17 September 2013 for PlayStation 3 and Xbox 360, on 18 November 2014 for PlayStation 4 and Xbox One, and on 14 April 2015 for Microsoft Windows. It is the first main entry in the "Grand Theft Auto" series since 2008's "Grand Theft Auto IV". Set within the fictional state of San Andreas, based on Southern California, the single-player story follows three criminals and their efforts to commit heists while under pressure from a government agency. The open world design lets players freely roam San Andreas' open countryside and the fictional city of Los Santos, based on Los Angeles.
Document 5: Grand Theft Auto Online: Grand Theft Auto Online is a persistent, open world online multiplayer video game developed by Rockstar North and published by Rockstar Games. It was released on 1 October 2013 for PlayStation 3 and Xbox 360, and was released on 18 November 2014 for PlayStation 4 and Xbox One, with a Microsoft Windows version on 14 April 2015. The game is the online multiplayer mode for "Grand Theft Auto V". Set within the fictional state of San Andreas (based on Southern California), "Grand Theft Auto Online" allows up to 30 players to explore the open world and engage in cooperative or competitive game matches. The open world design lets players freely roam San Andreas, which includes open countryside and the fictional city of Los Santos (based on Los Angeles).
Document 6: List of Grand Theft Auto V characters: Rockstar North's 2013 open world action-adventure video game "Grand Theft Auto V", published by Rockstar Games, deals with a trio of criminals and their efforts to commit heists while under pressure from a corrupt government agency. The game's use of three lead protagonists is a break from series tradition. Three days after its release, "Grand Theft Auto V" had earned more than US $1 billion in sales, making it the fastest selling video game in history. Additionally, "Grand Theft Auto V" was voted Game of the Year from several gaming publications. The game's characters were created by writers Dan Houser and Rupert Humphries. The use of multiple lead protagonists, as well as the cast in general, has received generally positive reviews from gaming magazines and websites.
Document 7: Grand Theft Auto: Liberty City Stories: Grand Theft Auto: Liberty City Stories is an open world action-adventure video game developed by Rockstar Leeds in conjunction with Rockstar North and published by Rockstar Games. Released on 25 October 2005 for the PlayStation Portable, it is the ninth game in the "Grand Theft Auto" series and was preceded by "" and succeeded by "". It is a prequel to "Grand Theft Auto III". It was published and distributed by Capcom for the Japanese release. It was released on PlayStation 3 via the PlayStation Network on 2 April 2013.
Document 8: Grand Theft Auto IV: Grand Theft Auto IV is an action-adventure video game developed by Rockstar North and published by Rockstar Games. It was released for the PlayStation 3 and Xbox 360 consoles on 29 April 2008, and for Microsoft Windows on 2 December 2008. It is the eleventh title in the "Grand Theft Auto" series, and the first main entry since 2004's "". Set within the fictional Liberty City (based on New York City), the single-player story follows a war veteran, Niko Bellic, and his attempts to escape his past while under pressure from loan sharks and mob bosses. The open world design lets players freely roam Liberty City, consisting of three main islands.
Document 9: Grand Theft Auto: Grand Theft Auto (GTA) is an action-adventure video game series created by David Jones and Mike Dailly; the later titles of which were created by brothers Dan and Sam Houser, Leslie Benzies and Aaron Garbut. It is primarily developed by Rockstar North (formerly DMA Design), and published by Rockstar Games. The name of the series references the term used in the US for motor vehicle theft.
Document 10: Grand Theft Auto: Vice City Stories: Grand Theft Auto: Vice City Stories is an open world action-adventure video game developed by Rockstar Leeds in conjunction with Rockstar North and published by Rockstar Games. Released on 31 October 2006 for the PlayStation Portable and later for the PlayStation 2 on 5 March 2007. The game is the tenth instalment in the "Grand Theft Auto" series and the sixth and last game in the 3D universe. This was also the last game in the series to use well-known and Hollywood voice talent; "Grand Theft Auto IV" onward would instead use lesser-known and unknown voice actors. It is a prequel to "" and successor to the previous PSP release, "". Vice City is a representation of Miami, Florida.
Document 11: Grand Theft Auto: The Lost and Damned: Grand Theft Auto IV: The Lost and Damned is the first of two episodic expansion packs developed for the Xbox 360, PlayStation 3 and PC versions of "Grand Theft Auto IV", developed by Rockstar North and published by Rockstar Games. It was first released for the Xbox 360 on 17 February 2009 and on PlayStation 3 and Microsoft Windows on 13 April 2010. It is the third expansion pack game in the "Grand Theft Auto" series (the first since "", released in 1999), and the twelfth release overall.
Document 12: Development of Grand Theft Auto V: An approximately 1,000-person team developed "Grand Theft Auto V", an action-adventure video game, over several years. Rockstar Games released "Grand Theft Auto V" on 17 September 2013 for PlayStation 3 and Xbox 360, on 18 November 2014 for PlayStation 4 and Xbox One, and on 14 April 2015 for Microsoft Windows, as the fifteenth entry in the "Grand Theft Auto" series. Development began soon after "Grand Theft Auto IV"' s release and was led by Rockstar North's core 360-person team, who collaborated with several other international Rockstar Games studios. The team considered the game a spiritual successor to many of their previous projects like "Red Dead Redemption" and "Max Payne 3". After its unexpected announcement in 2011, the game was fervently promoted with press showings, cinematic trailers, viral marketing strategies and special editions. Its release date, though subject to several delays, was widely anticipated.
Document 13: Grand Theft Auto (Game Boy Advance): Grand Theft Auto is an action-adventure video game developed by Digital Eclipse and published by Rockstar Games for the Game Boy Advance, released on October 26, 2004. The game is referred to as Grand Theft Auto Advance on its title screen; the game's cover art and all promotional material refer to it as simply "Grand Theft Auto".
Document 14: List of accolades received by Grand Theft Auto V: "Grand Theft Auto V" is an open world, action-adventure video game developed by Rockstar North and published by Rockstar Games. Players freely roam the fictional state of San Andreas (based on Southern California), composed of open countryside and the fictional city of Los Santos (based on Los Angeles). The game was first announced on 25 October 2011, and was widely anticipated. At the 2012 Spike Video Game Awards (now the VGX), it was awarded Most Anticipated Game. It was released on 17 September 2013 for the PlayStation 3 and Xbox 360, on 18 November 2014 for the PlayStation 4 and Xbox One, and on 14 April 2015 for Microsoft Windows. Review aggregator, Metacritic, assigned the game a normalised score of 97 out of 100, indicating "universal acclaim", based on 50 reviews for the PlayStation 3 version, 58 reviews for the Xbox 360 version, 66 reviews for the PlayStation 4 version and 14 reviews for the Xbox One version. Within twenty-four hours of its release, "Grand Theft Auto V" generated more than $815.7 million in worldwide revenue, equating to approximately 11.21 million copies sold for Take Two. Three days after release, the game had surpassed one billion dollars in sales, making it the fastest selling entertainment product in history.
Document 15: Controversies surrounding Grand Theft Auto IV: "Grand Theft Auto IV" is an open world, action-adventure video game developed by Rockstar North and published by Rockstar Games. Upon its release on 29 April 2008 for the PlayStation 3 and Xbox 360, "Grand Theft Auto IV" generated controversy. The game's depiction of violence received mass commentary from journalists and government officials, occasionally being referred to as a "murder simulator". The ability to drive under the influence of alcohol in the game also received criticism, resulting in a request for the ESRB to change the game's rating. Similarly, some gameplay features were censored for the Australian and New Zealand versions of the game, though these censors were subsequently removed. Several crimes that were committed following the game's release, such as murder and sexual violence, were attributed to the perpetrators' experience with the game, generating further controversy. Former attorney Jack Thompson, known for his campaigns against the series, heavily criticised "Grand Theft Auto IV" prior to its release, filing lawsuits against parent company Take-Two Interactive, and threatening to ban distribution of the game if some gameplay features were not removed. The game also generated further controversy and lawsuits from city officials and organisations.
ground_truth: Rockstar Games