Which IGMPv2 message contains a non-zero "Max Response Time"？（）A、Membership QueryB、Membership ReportC、Membership DelayD、Backward Compatible IGMPv1 Report Message
Which IGMPv2 message contains a non-zero "Max Response Time"？（）
- A、Membership Query
- B、Membership Report
- C、Membership Delay
- D、Backward Compatible IGMPv1 Report Message
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