Which sentence correctly forms the possessive noun(s)?
(A) Kellys and Teters score's are close, but Teters makes her a medal contender.
(B) Kelly's and Teter's scores are close, but Teter's makes her a medal contender.
(C) Kellys' and Teters' scores are close, but Teters' make her a medal contender.
(D) Kellys's and Teters's scores are close, but Teters's make her a medal contender.