This logic diagram represents the expression A B B Select one: : O a. X=AB UAB O b. X=(AB) + AB O c. X=AB'+A'B O d. X=(ABY+A'B' Which of the following counters has a none zero delay? a. either asynchronous or ripple counter. O b. synchronous counters O c. Ripple counter O d. None of the mentioned choices. the statement that best describes the operation of D flip-flop if the clock is a negative-edge-triggered is: O a. The Qoutput is always the same as the clock input if the D input equals 1 O b. The Qoutput is always the same as the input O c. The logic level at the Dinput is transferred to Q on negative edge of the Clock O d. The Qoutput is always the same as the D input at the positive edge of the clock One of these components are not include in latches. a. Present state O b. clock OC NAND gates O d. inverter If you implement the function F(A,B,C)= Summ (3,4,6,7) using a 4- 1 MUX then the input position 12 will be: O a. 12 - 1 O b. 12 - B O c. 12 = 0 O d. None of the choices O e. 12 = B' O f.12 - C =