I need help bad and is in a rush

I would belive it would be answer ''A'' because the question is aking a bout the ice cover not snowfall. So A would be your answer.

Explanation:

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The answer is: mobile phones and Internet access.

Explanation:

Mass communication, or mass media, as well as private communication have changed dramatically since the appearence of the Internet. Before the massification of the Internet, mass media relied on devices such as television and radio, but communication wasn´t instant.

Thanks to Internet and to devices that have Internet access, such as mobile phones, communication is now instant and a person can see information from the other part of the world at almost the same time an event is happening.