Consider the integration of three analog sources and four identical digital sources through a time-division multiplexer that uses its entire 160Kbls maxi- mum capacity. The analog lines-with bandwidths of 5KHz, 2KHz, and 1KHz, (a) For the analog sources, find the total bit rate. b) For the digital sources, find each line's bit rate. c) Find the trame rate if a trame carries eight sampled analog channels, four