Electronic communications such as email, text messages, chat

Which of the following most logically completes the passage?

Electronic communications such as email, text messages, chats, and posts on the "walls" of social media sites are considered by psychologists to be "impersonal" forms of communication, meaning that the sender of the communication is distant from the receiver of the communication. This separation often results in misinterpretation by the recipient. Since such communications are also primarily one-way interactions,
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