Douglas and McGarty (2001) reported that the anonymity of Internet chat rooms, newsgroups and listservs seems to foster more hostile behavior than is observed in face-to-face conversations. This is an example of how contribute(s) to deindividuation.
A. group size.
B. physical anonymity.
C. arousing activities.

B. physical anonymity.

Explanation:

Anonymity can be explained in psychological research as a situation whereby the data collected from participants is confidential and cannot be traced to any particular individual.

Deindividuation is known to be a phenomenon in which people engage in seemingly impulsive and sometimes violent acts in situations in which they believe they cannot be personally identified.

In this case, people that are not physically present tend to be more hostile or engaged in some cruel act. This is because they know they can be seen face-to-face, and people will not know that they are the perpetrator of the act.

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