Which sentence from the article is quoted and cited correctly?

A For its entire existence, the Peachtree Road Race has boasted Olympic-level victors.
B One thing that makes the Peachtree Road Race special is that "it takes place each year on Independence Day." (Matherne).
C By 1980, the humble race in Georgia, "had grown from 110 runners to over 20,000 people and had nearly outgrown the four-lane street" (Matherne).
D "The Peachtree Road Race in Atlanta, GA is the world's largest 10K, boasting 55,000 runners who line up for blocks at 7:30am to run down Atlanta's most famous street."

C "By 1980, the humble race in Georgia, 'had grown from 110 runners to over 20,000 people and had nearly outgrown the four-lane street' (Matherne)."