Question: Which institution has the most campuses, Rice University or the University of Tennessee system?
Context: Rice University athletic teams are known as the Rice Owls.  The name comes from the owls in Rice's crest.  Rice participates in NCAA Division I athletics.  A member of Conference USA, Rice sponsors teams in seven men's and seven women's NCAA sanctioned sports: Rice was a member of the Southwest Conference until its breakup in 1996.  Rice then joined the Western Athletic Conference before joining C-USA on July 1, 2005.  Rice is the fifth-smallest school competing in NCAA Division I FBS football measured by undergraduate enrollment, just above the University of Tulsa's 2,756 and the three FBS United States service academies's approximate 4,500.  Rice's sports rivalry include cross-town University of Houston, and Tulane University. Riki Kobayashi (1924–2013) was a chemical engineer and a long-time professor of chemical engineering at Rice University.  A native of Harris County, Texas, he attended Rice University (then known as Rice Institute) and earned the Bachelor of Science in Chemical Engineering.  After serving in the U.S. Army, he went to the University of Michigan, where he earned the Master of Science degree in 1946 and the Doctor of Philosophy degree in 1951, both in chemical engineering.  He became a member of the Rice faculty in 1951 and remained there until he retired in 1994.  He died July 19, 2013, in Houston, Texas. Richard Alfred Tapia (born March 25, 1939) is an American mathematician and champion of under-represented minorities in the sciences.  In recognition of his broad contributions, in 2005, Tapia was named "University Professor" at Rice University in Houston, Texas, the University's highest academic title.  The honor has been bestowed on only six professors in Rice's one-hundred-five-year history.  On September 28, 2011, President Barack Obama announced that Tapia was among twelve scientists to be awarded the National Medal of Science, the top award the United States offers its researchers.  Tapia is currently the Maxfield and Oshman Professor of Engineering; Associate Director of Graduate Studies, Office of Research and Graduate Studies; and Director of the Center for Excellence and Equity in Education at Rice University. The University of Tennessee system (UT system) is one of two public university systems, the other being the Tennessee Board of Regents (TBR), in the state of Tennessee.  It consists of three primary campuses in Knoxville, Chattanooga, and Martin; a health sciences campus in Memphis; a research institute in Tullahoma; and various extensions throughout the state. David W. Leebron (born 1955) is the seventh president of Rice University.  He has been a professor and dean of Columbia Law School, until he was named president of Rice University on July 1, 2004.  Leebron is the first Jewish president of Rice University. The Rice University School of Architecture is an undergraduate and graduate institution for the built environment at Rice University in Houston, Texas.  Rice's graduate and undergraduate programs in architecture typically maintains an enrollment of around 200 students.  Founded in 1912, the faculty consists of twenty architects, historians, and theoreticians, supplemented by visiting scholars and is led by Dean and Professor Sarah Whiting. Woodson Research Center is an archive located in the Fondren Library of Rice University in Houston, Texas.  The Center is named for Benjamin N. Woodson and houses the special collections of Rice University's Fondren Library which includes rare books, manuscripts, and the Rice University archives. The University of Tennessee at Martin (UT Martin, or UTM), located in Martin, Tennessee, in the United States, is one of the five campuses of the University of Tennessee system.  Prior to the acquisition of Lambuth University in Jackson by University of Memphis in 2011, UTM was the only public four-year university in West Tennessee outside of Memphis. KBLT-LP, usually referred to by its former callsign and still-current branding KTRU (stylized as ktru), is a college radio station broadcasting a freeform-eclectic music format on 96.1 FM.  The station is owned by Rice University, and is managed by its students.  KTRU's original radio tower, FM frequency and broadcast license were sold by Rice University to the University of Houston System, and the station ceased broadcasting on the 91.7 FM frequency on April 28, 2011.  It returned to the FM band when it acquired an LPFM construction permit for the 96.1 frequency, which signed on in October 2015.  The low-powered 96.1 facility (which received the random call letters KBLT-LP as KTRU was already taken) only covers southwest Houston.  As a result, KTRU relies solely on online streaming to reach listeners outside of its limited broadcast range. Rice University, officially William Marsh Rice University, is a private research university located on a 295-acre campus in Houston, Texas, United States.  The university is situated near the Houston Museum District and is adjacent to the Texas Medical Center.  Rice is generally considered the top university and the most selective institution of higher education in the state of Texas.
Answer: University of Tennessee system