And my best friends Sue and Kelly and Frances
Hello.
In an American movie, a seventeen year old girl, Cecile, is talking to her music teacher about an acquaintance of hers: "She completely tried to outdo me with this one-handed cartwheel, which is so stupid, because I told her for a longtime, for like two weeks, that I could do this [she does a headstand!], and then I could do It for a really long time. And my best friends Sue and Kelly and Frances, that I could do it for so long. You see what I mean?"

Could you tell me what she means by "and my best friends Sue and Kelly and Frances"?
a) Cecile told to her best friends Sue and Kelly and Frances that she can do a headstand.
b) Cecile's best friends Sue and Kelly and Frances told to Cecile's acquaintance that Cecile can do a headstand.
c) Something else?

Question

And my best friends Sue and Kelly and Frances
Hello.
In an American movie, a seventeen year old girl, Cecile, is talking to her music teacher about an acquaintance of hers: "She completely tried to outdo me with this one-handed cartwheel, which is so stupid, because I told her for a longtime, for like two weeks, that I could do this [she does a headstand!], and then I could do It for a really long time. And my best friends Sue and Kelly and Frances, that I could do it for so long. You see what I mean?"

Could you tell me what she means by "and my best friends Sue and Kelly and Frances"?
a) Cecile told to her best friends Sue and Kelly and Frances that she can do a headstand. 
b) Cecile's best friends Sue and Kelly and Frances told to Cecile's acquaintance that Cecile can do a headstand. 
c) Something else?

Answer

Seems grammatically incoherent lol.  But it seems you get the gist of the possible meanings . I could help if I knew the scene and movie. But otherwise your guess is as good as mine.

No pierdas la oportunidad de aprender un idioma desde la comodidad de tu casa. ¡Explora nuestra selección de profesores de idiomas con experiencia e inscríbete ya en tu primera clase!