Which One of the Following Teenage Girls Appears to Have

Which one of the following teenage girls appears to have contingent self-worth?

A) Marlene feels great some days and terrible other days, depending on how many classmates have recently smiled at her in the school corridors.
B) Roxanne knows she's smart because she has always done well in her schoolwork.
C) Shayla discovers that she is a better tennis play when she regularly practices her serve.
D) When Rennie plans a party, she wants to invite only the really "popular" kids.