Question: The Chevrolet Bruin was assembled by the division of GM that focuses on what type of vehicles?

Context paragraphs:
GM Service and Parts Operations: GM Service and Parts Operations (GM SPO) is a division of General Motors that supplies replacement parts, and automotive service through GM's network of Dealers.  For Non-GM vehicles, ACDelco (a division of GM SPO) supplies replacement and repair parts for GM and Non-GM vehicles in over 100 countries around the world.  GM Accessories (a division of SPO) supplies an extensive portfolio of performance, functional, entertainment and appearance automotive accessories for all GM vehicle brands worldwide.

GM Korea: GM Korea Company (Korean: 한국지엠주식회사 , ] ) is South Korea's third largest automobile manufacturer and a subsidiary of General Motors.  GM Korea's roots go back to the former Daewoo which was split from its parent company, Daewoo Group, in 2001.  It has five manufacturing facilities in South Korea as well as a vehicle assembly facility in Vietnam.  In addition, GM Korea provides region and brand-specific vehicle assembly kits for assembly by GM affiliates in China, the United States, Australia, Germany, India, and Brazil.  In 2008, GM Korea built more than 1.9 million vehicles, including CKD products.  It now produces vehicles and kits for Chevrolet, Holden, Opel and Buick that are offered in more than 150 markets on six continents.  GM Korea also has design, engineering, research & development facilities that are involved in development for various GM products, above all small-size cars.

Chevrolet Opala: The Chevrolet Opala was a Brazilian mid-size car sold under the Chevrolet brand in South America from 1969 to 1992, by General Motors do Brasil.  It was derived from the German Opel Rekord Series C, Opel Commodore Series A, but used USA-sourced engines and Holden styling.  Two four-cylinder engines: the Chevrolet 153ci 4-cylinder from Chevy II/Nova, which later got a new crankshaft stroke and cylinder bore, changing its size to 151ci (usually mistaken for the Pontiac Iron Duke engine), and the six-cylinder 250 from the contemporary line of North American car/light truck production.  GM manufactured about one million units including the Opala sedan, Opala Coupé, and the station wagon variant, the Opala Caravan.  It was replaced by the Chevrolet Omega in 1992, also an Opel spinoff.  It was the first passenger car built by GM in Brazil by the General Motors do Brasil division.  A luxury version of the Opala was marketed as the Chevrolet Diplomata.

GMC (automobile): GMC (General Motors Truck Company), formally the GMC Division of General Motors LLC, is a division of the American automobile manufacturer General Motors (GM) that primarily focuses on trucks and utility vehicles.  GMC sells pickup and commercial trucks, buses, vans, military vehicles, and sport utility vehicles marketed worldwide by General Motors.

Chevrolet Bruin: The Chevrolet Bruin and GMC Brigadier are heavy-duty (Class 7-8) trucks that were assembled by the GMC Truck and Coach Division of General Motors.  The second generation of the H/J-series heavy-duty conventionals, the Bruin/Brigadier were produced from 1978 to 1988.  A short-hood conventional similar to the Ford L-Series and Mack Model R, the Bruin/Brigadier was configured as both a straight truck and a semi-tractor.  As a Class 7-8 truck, the product line saw use with short-haul, vocational, and severe-service users.

Chevrolet: Chevrolet ( ), colloquially referred to as Chevy and formally the Chevrolet Division of General Motors Company, is an American automobile division of the American manufacturer General Motors (GM).  Louis Chevrolet and ousted General Motors founder William C. Durant started the company on November 3, 1911 as the Chevrolet Motor Car Company.  Durant used the Chevrolet Motor Car Company to acquire a controlling stake in General Motors with a reverse merger occurring on May 2, 1918 and propelled himself back to the GM presidency.  After Durant's second ousting in 1919, Alfred Sloan, with his maxim "a car for every purse and purpose," would pick the Chevrolet brand to become the volume leader in the General Motors family, selling mainstream vehicles to compete with Henry Ford's Model T in 1919 and overtaking Ford as the best-selling car in the United States by 1929.

Chevrolet Titan: The Chevrolet Titan and GMC Astro are heavy-duty (Class 8) cabover trucks that were manufactured by the GMC Truck and Coach Division of General Motors.  The largest cabover trucks ever produced by GM, the Titan (and more common Astro) were introduced for 1969, replacing the 1960-1968 GMC "Crackerbox" COEs.  The Astro and Titan would become the final trucks of the type assembled and marketed by General Motors, following the 1981 exit of Chevrolet from heavy truck sales and the 1986 creation of the Volvo GM joint venture.

Chevrolet Bison: The Chevrolet Bison and GMC General are heavy-duty (Class 8) trucks that were assembled by the GMC Truck and Coach Division of General Motors.  The largest conventional-cab truck ever produced by GM, the product line was introduced for 1977, replacing the C/M 90/9500 trucks.  As General Motors removed Chevrolet from the heavy-truck market in 1981, the Bison was discontinued.  In 1987, the GMC General was phased out as the Volvo GM joint venture introduced WhiteGMC trucks based on White designs; alongside the Brigadier, the General is currently the last Class 8 truck produced by GMC.

Wentzville Assembly: Wentzville Assembly is a General Motors automobile factory at 1500 East Route A in Wentzville, Missouri which opened in 1983.  The factory originally built full-size Buick, Oldsmobiles and Pontiac sedans, and assumed operations of the previous St. Louis Truck Assembly which had been in operation since 1920 as an original Chevrolet factory before GM acquired the brand.  Later in 1996, production shifted to building more than 2.5 million of GM's full-size Chevrolet Express and GMC Savana cargo vans , when the previous generation Chevrolet Van and GMC Vandura were replaced, having been built at Lordstown Assembly in Ohio.  It also builds the Chevrolet Colorado and GMC Canyon when the Shreveport Assembly in Louisiana factory was closed, where the Chevrolet S-10, and compact sized Chevrolet Blazer were produced.

General Motors: General Motors Company, commonly known as GM, is an American multinational corporation headquartered in Detroit, Michigan, that designs, manufactures, markets, and distributes vehicles and vehicle parts, and sells financial services.  With global headquarters at the Renaissance Center in Detroit, Michigan, United States, GM manufactures cars and trucks in 35 countries.  In 2008, 8.35 million GM cars and trucks were sold globally under various brands.  GM reached the milestone of selling 10 million vehicles in 2016.  Current auto brands are Buick, Cadillac, Chevrolet, GMC, Holden, and Wuling.  Former GM automotive brands include McLaughlin, Oakland, Oldsmobile, Pontiac, Hummer, Saab, Saturn, as well as Vauxhall, and Opel, which were bought by Groupe PSA in 2017.

Supporting paragraphs: Chevrolet Bruin GMC (automobile)
Answer: trucks and utility vehicles