题目内容：
What is true about today'scommunication through social media?
A．It causes more health risks. A．It causes more health risks.
B．It gives little communication context.
B．It gives little communication context.
C．It leads to better relationships.
C．It leads to better relationships.
D．It improves the quality of interaction.
D．It improves the quality of interaction.
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答案解析：