Which sentence is punctuated correctly?


A.
The possible dates for their family reunion are: June 13-21; July 18-26; or August 8-16.


B.
On our trip through South America, we visited Buenos Aires, Argentina; Santiago, Chile; and Lima, Peru.


C.
Harrison County; Mississippi, Mobile County; Alabama, and Hillsborough County; Florida are all right on the Gulf of Mexico.


D.
Fred can speak these languages: Japanese; Korean; and Tagalog.