The mention of a conflict between people with earpiece thingies and bystanders in the sixt

The mention of a conflict between people with earpiece thingies and bystanders in the sixth paragraph is to______.

A．support the author"s opinion in the previous part

B．elicit the author"s opinion in the following paragraph

C．verify the trueness of the author"s statement

D．refute other people"s sympathy for the man

请帮忙给出正确答案和分析，谢谢！