Which technology uses two or three antennas to receive (input) the signal and two or three radios to transmit (output), plus special signal processing to improve range, reliability, and throughput.

Which technology uses two or three antennas to receive (input) the signal and two or three radios to transmit (output), plus special signal processing to improve range, reliability, and throughput.
A . HSPA
B . CDMA
C . LTE
D . MIMO

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Answer: D