The September 18, 1850, Fugitive Slave Act provides for the return of slaves brought to free states. Millard Fillmore is sworn into office as the 13th President of the United States, following Zachary Taylor's death on July 9, 1850. "America" wins the first America's Cup yacht race on August 22, 1851.
That is describing what the character does so it is C. It couldn't be A because it isn't a part of the story. It couldn't be B because it isn't a problem. It lastly couldn't be D because it's not a message the author is trying to convey to the reader.