在直接交换方式中，局域网交换机只要接受并检测到目的地址字段，就立即将该帧转发出去，而不管这一帧数据是否出错。帧出错检测任务由以下哪种设备完成_______。

A．源主机

B．目的主机

C．中继器

D．集线器

—Jenny hasn't paid for her leather jacket, has she?

—_____. Her cousin will pay for her. [ ]

A. Yes, she has.

B.  No, she hasn't.

C. Yes, she did.

D. No, she didn't.