Final answer:
The New York City Ballet is the highest-ranking U.S. ballet company, recognized for its vast repertoire, use of corps dancers, and focus on female dancers. The correct option is c.
Step-by-step explanation:
The ballet company known as the highest-ranking U.S. ballet company, noted for its wide variety of styles and themes, use of corps dancers, and an emphasis on female dancers is C) New York City Ballet.
Founded by the legendary choreographer George Balanchine and impresario Lincoln Kirstein, the New York City Ballet is renowned for its athletic and contemporary style as well as its emphasis on new works.
The company's vast repertoire and its commitment to the works of Balanchine have earned it a distinct place in the dance world, setting it apart with performances that often highlight the skill and grace of female dancers. The correct option is c.