Final answer:
The New York City Ballet is the company known for its extensive use of Balanchine choreography, reflecting George Balanchine's significant influence on its repertoire.
Step-by-step explanation:
The ballet company known for its extensive use of Balanchine choreography, often to the exclusion of other choreographers, is the New York City Ballet (D). Founded by George Balanchine and Lincoln Kirstein, the New York City Ballet is renowned for its emphasis on Balanchine's works, which have significantly shaped the company's repertoire and style.
George Balanchine was a prolific choreographer, and his neoclassical approach to ballet is a hallmark of the company. While other companies perform Balanchine pieces, this ballet company is distinguished by the breadth and depth of Balanchine's choreography in its performances.