Design a sequential circuit with 2 JK flip-flops A and B, and 2 inputs, E and x. the design must adhere to the following requirements: If E = 0, the circuit remains in the same state regardless of the value of x. When E = 1 and x = 1, the circuit goes through the state transitions from 00 to 01 to 10 to 11 back to 00 and repeats. When E = 1 and x = 0, the circuit goes through the...