Final answer:
The ballet company founded by Arthur Mitchell, known for its African-American ensemble, is the Dance Theatre of Harlem. The correct option is B.
Step-by-step explanation:
The ballet company primarily consisting of African-American dancers and artists, founded by Arthur Mitchell, the first black soloist in a major U.S. company, is Dance Theatre of Harlem.
Arthur Mitchell established the company in response to the assassination of Dr. Martin Luther King Jr., with the aim of providing opportunities for the community and to present ballet in a way that celebrated African American culture.
Mitchell's pioneering efforts have made a significant impact on the world of dance, ensuring that dancers of all backgrounds have a place to shine and contribute to the art form.
By investing in the diversity and capability of African-American ballet dancers, Mitchell solidified Dance Theatre of Harlem’s place as an iconic institution in the world of ballet. The correct option is B.