Given the question: Information:  - Paz Lenchantin ( born December 12 , 1973 ) is an Argentine American musician . She is known for playing bass in various bands , including Entrance , A Perfect Circle , Pixies and Zwan .  - The Pixies are an American alternative rock band formed in 1986 in Boston, Massachusetts. Until 2013, the band comprised Black Francis (lead vocals, rhythm guitar), Joey Santiago (lead guitar), Kim Deal (bass, vocals) and David Lovering (drums). The band disbanded acrimoniously in 1993, but reunited in 2004. Deal left in 2013 and was replaced by Kim Shattuck and then Paz Lenchantin.   - Zwan was an American alternative rock band that was formed by members of The Smashing Pumpkins, Slint, Tortoise, Chavez, and A Perfect Circle. Zwan was started in late 2001 by Billy Corgan, lead singer and guitarist of the Smashing Pumpkins, after the Pumpkins disbanded in December 2000. The band released only one album, entitled "Mary Star of the Sea". The group disbanded acrimoniously after their 2003 world tour.  - Slint is an American rock band consisting of Brian McMahan (guitar and vocals), David Pajo (guitar), Britt Walford (drums and vocals), Todd Brashear (bass on "Spiderland"), and Ethan Buckler (bass on "Tweez"). They formed in Louisville, Kentucky, United States, in 1986. Slint's first album "Tweez" was recorded by legendary engineer Steve Albini in 1987 and released in obscurity on the Jennifer Hartman Records label in 1989. It was followed two years later by the critically acclaimed "Spiderland", released on the independent label Touch and Go Records. Though they have never recorded since 1991, they are considered by critics and musicians alike to be a major influence on the post-hardcore, math rock, and post-rock scenes, "Spiderland" alone being cited as one of the landmark records of the 1990s and as among the greatest albums of all time.  - A Perfect Circle is an American rock supergroup formed in 1999 by guitarist Billy Howerdel and Tool vocalist Maynard James Keenan. The original incarnation of the band also included Paz Lenchantin on bass, Troy Van Leeuwen on guitar, and Tim Alexander on drums, with Josh Freese as the primary drummer after the band's initial round of touring prior to their first album. The latest lineup features Puscifer and Ashes Divide bassist Matt McJunkins; former The Smashing Pumpkins guitarist James Iha; and Puscifer and Ashes Divide touring drummer, Jeff Friedl. Despite having a varied cast since inception, the stylistic content of the songs has remained consistent with Howerdel as composer, and Keenan penning the lyrics and melodies.  - The Smashing Pumpkins are an American alternative rock band from Chicago, Illinois, formed in 1988. Formed by frontman Billy Corgan (lead vocals, guitar) and James Iha (guitar), the band included D'arcy Wretzky (bass guitar) and Jimmy Chamberlin (drums) in its original incarnation. It has undergone many line-up changes over the course of its existence, with the current lineup being Corgan and rhythm guitarist Jeff Schroeder.    After reading the paragraphs above, we are interested in knowing the entity with which 'paz lenchantin' exhibits the relationship of 'instrument'. Find the answer from the choices below.  Choices: - bass  - bass guitar  - guitar  - rhythm guitar
The answer is:
bass guitar