答案解析：
B
整段内容是说，Joey 和他的父亲谈过了，他的父亲还是能够背着他母亲在外面……，而他的母亲也会继续假装不知道。中途Joey说道一件毫不相关的事情，就是他的妹妹Tina。
B 不正确，因为Tina的事情与Joey 说的其他事情毫不相关。

听力原文：

Monica: So you talked to your dad, huh.
Joey: Yeah. He's gonna keep cheating on my ma like she wanted, she's gonna keep pretending she doesn't know even though she does, and my little sister Tina can't see her husband anymore because he got a restraining order...which has nothing to do with anything except that I found out today.
Rachel: Wow.
Chandler: Things sure have changed here on Waltons mountain.
Ross: So Joey, you okay?
Joey: Yeah, I guess. It's just parents, after a certain point, you gotta let go. Even if you know better, you've gotta let them make their own mistakes.