1 point 1. A Time-division multiplexing (TDM) multiplexer combines four 200-kbps channels using a time slot of 4 bits. Which statement is TRUE? * Note: May have more than 1 answer frame duration = bit duration frame duration = 1/50000 s bit rate = 800 KBps frame duration = 20 us frame rate = 50000 frame rate = 5000 bit rate = 800,000 bps