Question: Design the circuit for a newspaper vending machine. Each item costs 40 cents. The machine accepts nickels, dimes, and quarters. Assume a coin sorter that accepts coins and provides three signals, one for each of the three types of coins. Assume that the signals on these three lines are separated far enough so that the other circuits can make a state transition between pulses received on any two of these lines. Correct change must be released. The sequential circuit must generate signals to release correct change (one signal for each type of coin) and the news paper. Use JK flip-flops in your design.