Question: What nationality is the star of The Man in 3B?

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The Man in 3B: The Man in 3B is a 2015 American mystery crime-thriller film directed by Trey Haley.  The film is based on the novel of the same name written by "The New York Times" best-selling author Carl Weber.  "The Man in 3B" stars an ensemble cast that includes Lamman Rucker, Christian Keyes, Anthony Montgomery, Robert Ri'chard, DB Woodside, Kellita Smith, James Black, Jackée Harry, Marla Gibbs, and Billy Dee Williams.  The film was released on November 6, 2015.

3B/Bærums Verk: 3B / Bærums Verk IF (3B/BVIF) is a basketball club which was founded in 2002 by BLNO coach Pål Berg.  3B is a combination of EB-85, Bærums Verk IF and Sandvika BBK.  The name 3B means "three basketball teams".  In 2006 3B, had two teams: a 90/91 team, and a BLNO team.

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Lamman Rucker: Lamman Rucker (born October 6, 1971) is an American actor.  Rucker began his career on the daytime soap operas "As the World Turns" and "All My Children", before roles in Tyler Perry's films "Why Did I Get Married? ", "Why Did I Get Married Too? ", and "Meet the Browns", and its television adaptation.  In 2016, he began starring as Jacob Greenleaf in the Oprah Winfrey Network drama series, "Greenleaf".

British Columbia Highway 3B: Highway 3B, opened in 1967, is an alternate loop to the Crowsnest Highway between Nancy Greene Lake and an area called Meadows, just west of Erie on the Crowsnest.  Originally, Highway 3B went between Nancy Greene Lake to Trail, where the Crowsnest picked up the route to the Meadows area.  Highway 3 was re-routed off the present-day Highway 3B alignment east of Trail in 1979.

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3B Lab: 3B Lab (3B Lab , surī bī labo ) , often stylized "3B LAB. ☆", "3B Lab.Star", or "3B Lab.s", is a Japanese punk rock group.  Its members are Okahira Kenji who used to be in 19, Chiba Takatoshi who provided musics for Kawahara Ayako, Tamakoshi Masahiro, and Uneoki Shuji.

King 3B: The King 3B is a medium-bore trombone currently manufactured by Conn-Selmer, Inc and sold as the "King 2103 Legend 3B."  Popular with professional jazz musicians, the older models from the 1960s are known for their brilliant tone and fluidity in the upper register.  One of several models of King trombones, the 3B has a .508" bore (the inside diameter of the inner slide) and an 8" bell.  It is available with a yellow brass, gold brass, or sterling silver bell, with an "F" attachment, or as a valve trombone.  The King 3B fits a small shank mouthpiece,

Long March 3C: The Long March 3C (), also known as the Changzheng 3C, CZ-3C and LM-3C, is a Chinese orbital carrier rocket.  It is launched from Launch Complex 2 at the Xichang Satellite Launch Centre.  A 3-stage rocket with two strapon liquid rocket boosters, it is a member of the Long March 3 rocket family, and was derived from the Long March 3B.  It was designed to fill a gap in payload capacities between the Long March 3A and 3B.

Supporting paragraphs: The Man in 3B Lamman Rucker
Answer: American