Question: What companies was Fredrik  Benteen in command llc during the battles that took place about 3 miles from  the little bighorn battlefield? 
Context: Battle of the Little Bighorn Reenactment is a reenactment of the Battle of the Little Bighorn.  Since the 1990s there have been two events conducted annually close to the anniversary of the battle in late June, although in 2015 only one event has been scheduled to take place. Thomas Mower McDougall (21 May, 1845 – 3 July, 1909) was an officer in the United States Army, who took part in the Battle of the Little Bighorn but survived because he was with Major Reno and Captain Benteen. Frederick William Benteen (August 24, 1834 – June 22, 1898) was a military officer during the American Civil War and then during the Indian Campaigns and Great Sioux War against the Lakota and Northern Cheyenne.  Benteen is best known for being in command of a battalion (Companies D, H,& K) of the 7th U. S. Cavalry at the Battle of the Little Bighorn in late June, 1876. George Kaiser Sanderson (September 9, 1844 – February 2, 1893) was a career U.S. Army officer.  Having enlisted as a Private he was latter commissioned and twice breveted for gallant and meritorious service during the American Civil War.  He is most notable for being the first to erect a monument at the Little Bighorn Battlefield National Monument. Montana is a state in the Western United States.  The western third of Montana contains numerous mountain ranges.  Smaller, "island ranges" are found in the central third of the state, for a total of 77 named ranges of the Rocky Mountains.  This geographical fact is reflected in the state's name, derived from the Spanish word "montaña" (mountain).  Montana has several nicknames, none official, including: "The Treasure State" and "Big Sky Country", and slogans that include "Land of the Shining Mountains" and more recently, "The Last Best Place".  The state ranks fourth in area, but 44th in population, and accordingly has the third-lowest population density in the United States.  The economy is primarily based on services, with ranching, wheat farming, oil and coal mining in the east, and lumber, tourism, and hard rock mining in the west.  Millions of tourists annually visit Glacier National Park, the Little Bighorn Battlefield National Monument, and three of the five entrances to Yellowstone National Park. Crow Agency is a census-designated place (CDP) in Big Horn County, Montana, United States and is near the actual location for the Little Bighorn National Monument and re-enactment produced by the Real Bird family known as Battle of the Little Bighorn Reenactment.  The population was 1,616 at the 2010 census.  It is the governmental headquarters of the Crow Native Americans.  It is also the location of the "agency offices" where the federal Superintendent of the Crow Indian Reservation and his staff (part of the Bureau of Indian Affairs, United States Department of the Interior) interacts with the Crow Tribe, pursuant to federal treaties and statutes. The Battle of the Little Bighorn, known to the Lakota and other Plains Indians as the Battle of the Greasy Grass and commonly referred to among white Americans as Custer's Last Stand, was an armed engagement between combined forces of the Lakota, Northern Cheyenne, and Arapaho tribes and the 7th Cavalry Regiment of the United States Army.  The battle, which resulted in the defeat of US forces, was the most significant action of the Great Sioux War of 1876.  It took place on June 25–26, 1876, along the Little Bighorn River in the Crow Indian Reservation in southeastern Montana Territory. Montana is a state in the Western United States.  The western third of Montana contains numerous mountain ranges.  Smaller, "island ranges" are found in the central third of the state, for a total of 77 named ranges of the Rocky Mountains.  This geographical fact is reflected in the state's name, derived from the Spanish word "montaña" (mountain).  Montana has several nicknames, none official, including: "The Treasure State" and "Big Sky Country", and slogans that include "Land of the Shining Mountains" and more recently, "The Last Best Place".  The state ranks fourth in area, but 44th in population, and accordingly has the third-lowest population density in the United States.  The economy is primarily based on services, with ranching, wheat farming, oil and coal mining in the east, and lumber, tourism, and hard rock mining in the west.  Millions of tourists annually visit Glacier National Park, the Little Bighorn Battlefield National Monument, and three of the five entrances to Yellowstone National Park. Battlefield archaeology is a sub-discipline of archaeology that began in North America with Dr. Douglas D. Scott's, National Park Service, metal detecting of Little Bighorn Battlefield National Monument in 1983.  It is not considered distinct from Military archaeology or Recceology (i.e., the recovery of surface finds and non-invasive site surveying). Little Bighorn Battlefield National Monument preserves the site of the June 25 and 26, 1876, Battle of the Little Bighorn, near Crow Agency, Montana, in the United States.  It also serves as a memorial to those who fought in the battle: George Armstrong Custer's 7th Cavalry and a combined Lakota-Northern Cheyenne and Arapaho force.  Custer National Cemetery, on the battlefield, is part of the national monument.  The site of a related military action led by Marcus Reno and Frederick Benteen is also part of the national monument, but is about three miles (5 km) southeast of the Little Bighorn battlefield.
Answer: Companies D, H,& K