Question: Although the New York Red Bulls represent the New York metropolitan area, also referred to as the Tri-State Area, they play in Red Bull Arena, located in Harrison, in which state?
Context: The New York metropolitan area, also referred to as the Tri-State Area, includes the most populous city in the United States (New York City), Long Island, and the Mid- and Lower Hudson Valley in the state of New York; the five largest cities in New Jersey: Newark, Jersey City, Paterson, Elizabeth, and Edison, and their vicinities; six of the seven largest cities in Connecticut: Bridgeport, New Haven, Stamford, Waterbury, Norwalk, and Danbury, and their vicinities; and five counties in northeastern Pennsylvania. The New York Red Bulls U-23 is an American soccer team based in Harrison, New Jersey.  Founded in 2009, the team plays in the Premier Development League, a national amateur league at the fourth tier of the American Soccer Pyramid.  It is part of the official Development Academy of Major League Soccer's New York Red Bulls. The New York Red Bulls II are an American professional soccer team based in Harrison, New Jersey.  They are the New York Red Bulls reserve team that plays in the United Soccer League (USL), one of two second-tier leagues in the American soccer pyramid. Red Bull Arena is a soccer-specific stadium in Harrison, New Jersey that is home to the New York Red Bulls of Major League Soccer.  Featuring a partial transparent roof, it is located on the waterfront in the Riverbend District of Harrison across the Passaic River from Newark and approximately 7 miles (12 km) west of lower Manhattan.  With a seating capacity of 25,000, it is the third-largest soccer-specific stadium in the United States and in Major League Soccer. The New York Red Bulls Academy is the multi-layered youth system of the New York Red Bulls.  It is the first cost-free program in Major League Soccer, that provides a professional soccer training environment for youth players in the New York Tri-State.  The soccer programs are operated as part of a global approach to player development. Zeiko Lewis (born June 4, 1995) is a Bermudian footballer who plays for New York Red Bulls II of the United Soccer League on loan from the New York Red Bulls of Major League Soccer.  He also plays for the Bermuda national football team. Records and statistics in relation to the American soccer club MetroStars/New York Red Bulls.  They were founded in 1995 as the New York/New Jersey MetroStars and played their first competitive match in the inaugural 1996 Major League Soccer season.  In 2006 the club was renamed to the New York Red Bulls. New York City FC is an American professional soccer club based in New York City that competes in Major League Soccer (MLS).  NYCFC began play in 2015, as an expansion team of the league.  The club is the first MLS franchise based in the city, and the second franchise in the New York metropolitan area after the New York Red Bulls, based in Harrison, New Jersey. The New York Red Bulls are an American professional soccer team based in Harrison, New Jersey.  The team competes as a member of the Eastern Conference in Major League Soccer (MLS).  The Red Bulls began play in 1996 (originally known as the New York/New Jersey MetroStars), as one of the charter clubs of the league.  In 2006 the team was sold to Red Bull GmbH, leading to the team's current name.  The team is one of two MLS franchises representing New York, along with New York City FC. New York has two Major League Baseball teams, the New York Yankees (based in the Bronx) and the New York Mets (based in Queens).  New York is home to three National Hockey League franchises: the New York Rangers in Manhattan, the New York Islanders in Brooklyn and the Buffalo Sabres in Buffalo.  New York has two National Basketball Association teams, the New York Knicks in Manhattan, and the Brooklyn Nets in Brooklyn.  New York has one Major League Soccer team: New York City FC.  Although the New York Red Bulls represent the New York metropolitan area they play in Red Bull Arena, located in Harrison, New Jersey.
Answer: New Jersey