Which of the Following Sets of Siblings Is Most Likely

Which of the following sets of siblings is most likely closest?

A) Frank, who is rich and does not work, and Fred, who works as a mechanic.
B) Jennifer and Jasmine, who are twins, but live in Toronto and St. John's respectively.
C) Sally, who lives in Vancouver, and Sarah, who lives in Halifax.
D) Vern, who has several friends, and Vito, who has only one close friend.