B) mother board
C) phone line
Correct Answer: C
Solution :[c] A modem (modulator-demodulator} is a device that modulates signals to encode digital information and modulates signals to encode digital information and demodulates signals to decode the transmitted information. It is connected to a telephone line. It turns the digital data of a computer into modulated electrical signal for transmission over telephone lines and demodulated by another modem at the receiver side.
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