Question: what studio developed both Prototype and Prototype 2? 

Context paragraphs:
Prototype 2: Prototype 2 (stylized as [PROTOTYPE2]) is a 2012 open world action-adventure video game.  Developed by Canadian studio Radical Entertainment and published by Activision, it is the sequel to 2009's "Prototype".  The game was announced at the 2010 Spike VGA Awards.  Versions for PlayStation 4 and Xbox One were released on July 14, 2015 alongside the first game as "Prototype Biohazard Bundle".  Separate versions of the games became available on August 12, 2015.

Ghostbusters: The Video Game: Ghostbusters: The Video Game is a 2009 action-adventure game based on the "Ghostbusters" media franchise.  Terminal Reality developed the Windows, PlayStation 3, and Xbox 360 versions, while Red Fly Studio developed the PlayStation 2, PlayStation Portable, and Wii versions, and Zen Studios developed the Nintendo DS version.  The game was released after several delays in development and multiple publisher changes.  In North America, all versions of the game were published by Atari, while publishing in Europe for the PlayStation 2, PlayStation Portable and PlayStation 3 versions was handled by Sony Computer Entertainment.

Clover Studio: Clover Studio (Japanese: クローバースタジオ株式会社 , Hepburn: Kurōbā sutajio kabushiki gaisha ) was an independent Japanese video game development studio funded by Capcom.  The studio developed the PlayStation 2 port of "Viewtiful Joe", both versions of "Viewtiful Joe 2" for the Nintendo GameCube and PlayStation 2, and the PS2 titles "Ōkami" and "God Hand".  The name "clover" is an abbreviation of "creativity lover" as well as the Japanese syllables mi ("three") and ba ("leaf") coming from the names of Shinji Mikami and Clover's Atsushi Inaba.

Ligier JS P2: The Ligier JS P2 is a racing car designed and built by French manufacturer Onroak Automotive and named in partnership with French former racing driver Guy Ligier.  Designed for the Le Mans Prototype 2 (LMP2) regulations, it is intended as a second option to Onroak's Morgan LMP2 that has been competing since 2012.  As well as being the first closed-cockpit car offered by Onroak, it is also the first car they designed entirely in-house.  The JS P2 debuted at the 2014 24 Hours of Le Mans, and has been campaigned in the FIA World Endurance Championship, European Le Mans Series, Asian Le Mans Series and United SportsCar Championship.

2011 Intercontinental Le Mans Cup: The 2011 Intercontinental Le Mans Cup was the second and final running of the Automobile Club de l'Ouest's (ACO) Intercontinental Le Mans Cup, an international auto racing championship for manufacturers and teams.  The Cup featured endurance races from the American Le Mans Series, Le Mans Series, and a stand-alone event in Zhuhai, China.  Championships were held for Le Mans Prototype 1 (LMP1), Le Mans Prototype 2 (LMP2), Le Mans Grand Touring Endurance – Professional (LMGTE Pro) and Le Mans Grand Touring Endurance – Amateur (LMGTE Am) category cars.

Studio 804: Studio 804 is a graduate level architecture design studio developed by Professor Dan Rockhill at the University of Kansas.  The course is distinguished from typical architecture studios in that it is a design-build studio in which the students work collaboratively to not only design a project but to actually construct it.  Studio 804 is a two-semester, 9 month commitment.  During the first semester students work collectively to determine a client for the next project.  Once a client is established, students usually have 2 months to design the project beginning with the Schematic Design phase and seeing it through to Construction Documents.  The second semester usually begins in early January to start off the building process.  One home is built by Studio 804 annually.

Peel Manxcar: The Peel Manxcar was a prototype 2+2 seater saloon car manufactured in 1955 by the Manx Peel Engineering Company.  Initially renamed from "Peel Manxman" because of the Excelsior (Coventry) motorbike of the same name, the Manxcar never entered standard production.

Prototype (video game): Prototype (stylized as [PROTOTYPE]) is an open world action-adventure video game developed by Radical Entertainment and published by Activision.  The game was released in North America on June 9, 2009, and in southwestern parts of North America as well as Oceania on June 10, and was released in Europe on June 12.  Versions for PlayStation 4 and Xbox One were released on July 14, 2015 alongside the sequel as "Prototype Biohazard Bundle".  Separate versions of the games became available on August 12, 2015.

Sean Slaughter: Sean Martin Slaughter (born May 4, 1976) is an American Christian hip hop musician.  He started making hip hop music in 1991 but did not release a commercial album until 1999.  He has released eight studio albums, "...And Justice for All" (1999), "The World Is Not Enough" (2001), "Slaughter Music Presents...the Dungeon Underground Classics, Chapter 1" (2002), "Die Another Day" (2005), "Just Add Water" (2006), "Man on Fire" (2008), "The Prototype" (2010) and "Prototype 2" (2014).

André Sogliuzzo: André Sogliuzzo (born August 10, 1966) is an American voice actor, and actor.  He is well known for his voice over work in video games, movies and TV shows.  He is also known for voicing Camo and Voodood in the Skylanders franchise and provided additional voices for ", Call of Duty, , , Doom 3, , Fantastic Four, , , , , Gothic 3, Spider-Man 3, , , Assassin's Creed II, , Singularity, , , , , , The Darkness II, Prototype 2, Diablo III, The Secret World, , Elder Scrolls Online, Phineas and Ferb" and "Mafia III".

Supporting paragraphs: Prototype 2 Prototype (video game)
Answer: Radical Entertainment