Question: Which has more members, Tegan and Sara or The dB's?

Context articles: I'll Take the Blame
Heartthrob (album)
The dB's
In the Valley, On the Shores
An Horse
Run All Night (album)
Walking with a Ghost
Under Feet Like Ours
Tegan and Sara
Closer (Tegan and Sara song)

I'll Take the Blame is the second major EP released by indie rock/new wave/indie pop group Tegan and Sara.
 The EP was first sold at shows during Tegan and Sara's fall 2008 tour of the United States.
Heartthrob is the seventh studio album by Canadian pop duo Tegan and Sara, released on January 29, 2013 on Neil Young's label Vapor Records through Warner Bros.
 Records.
 "Heartthrob" debuted at number 3 on the "Billboard" 200 chart, selling 49,000 copies in its first week and securing the band's highest chart position to date.
 It is also the first Tegan and Sara record to chart in New Zealand, the UK and Ireland.
 On July 4, 2013, "Heartthrob" was certified Gold in Canada.
 As of April 2016, "Heartthrob" has sold 199,000 copies in the United States.
The dB's are an American power pop and jangle pop group who first came into prominence in the late 1970s and 1980s.
 The band members are Peter Holsapple, Chris Stamey, Will Rigby and Gene Holder.
 While the members are all from Winston-Salem, North Carolina, the group was formed in New York City in 1978.
 In 2012, the band completed its first new studio album in 25 years and its first in 30 years with the original 1978 lineup.
In The Valley, On The Shores is a solo EP released by Jim Ward.
 It is the second time he released a solo EP, and is the second out of the three EP's in his acoustic EP trilogy.
 It was released May 1, 2009 by Ward's Civil Defense League record label.
 The EP also features Tegan Quin, from the band Tegan and Sara, who sings harmony on the second track "Broken Songs".
 Only 500 copies of the physical CD were made.
 The CD's were all hand numbered.
An Horse is a two-person indie rock band from Brisbane, Australia, composed of Kate Cooper of Iron On on vocals and guitar and Damon Cox of Intercooler on drums.
 In 2008 they toured the United States as an opening act for Tegan and Sara, prior to the release of their first album.
 In August 2008, they opened for Death Cab for Cutie for their Australian tour.
 They also opened for Silversun Pickups along with Cage The Elephant in October 2009 for an east coast leg of their Swoon tour.
 After their own 2009 North American tour, An Horse played as a supporting act for Tegan and Sara in Canada in 2010.
 In 2012 they accompanied Nada Surf on tour in the United States.
Run All Night is the debut album from Californian singer-songwriter Rachael Cantu.
 The song "Saturday" features Tegan Quin (of Tegan and Sara) doing background vocals during the chorus.
"Walking with a Ghost" is a song by Tegan and Sara, from their 2004 album "So Jealous" mostly written by Sara Quin, although credited to both band members, which was released as a single in 2005.
 The song appears on the soundtrack for the 2005 movie "Monster-in-Law" and was also used in the season 3 promo for Medium.
Under Feet Like Ours is a studio album published independently by the Canadian singer-songwriters Tegan and Sara.
 It was originally launched under "Sara and Tegan" in limited quantities in 1999, and was re-edited under "Tegan and Sara".
 It was re-released again in 2001 with the bonus track "Frozen" from This Business of Art.
Tegan and Sara are a Canadian indie pop band formed in 1998 in Calgary, Alberta, composed of identical twin sisters Tegan Rain Quin and Sara Keirsten Quin (born September 19, 1980).
 Both musicians are songwriters and multi-instrumentalists.
"Closer" is a song written and performed by Canadian duo Tegan and Sara.
 The song was written by Tegan Quin with contributions from Sara Quin and Greg Kurstin for their seventh studio album, "Heartthrob" (2013).
 The song was released as the lead single from the album in September 2012.
 Closer won "Single of the Year" at the 2014 Juno Awards.
 The song was featured on the TV series "Glee" during its 82nd episode.
 In 2013, it peaked at number one on "Billboard"' s Hot Dance Club Songs chart.
 It also became their first single to chart on the "Billboard" Hot 100.
 On April 20, 2013, 3600 vinyl copies of "Closer Remixed", including four more tracks than the digital EP, were exclusively released for Record Store Day 2013.
 On July 4, 2013, "Closer" was certified platinum in Canada.