此处需要一个名词，而本篇的主题是讲网络和通信交流，此处commnication 为正确答案。-找考题网

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单项选择题A．on the 4th floor in the electrical department.B．on the 2nd floor in the food court.C．on the 4th floor in the food court.D．on the 3rd floor in the food court.

A．on the 4th floor in the electrical department.
B．on the 2nd floor in the food court.
C．on the 4th floor in the food court.
D．on the 3rd floor in the food court.

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