(Solved):   The circuit shown in red box below is : A 2-bit binary synchronous counter A 2-bit binary ...

 

The circuit shown in red box below is : A 2-bit binary synchronous counter A 2-bit binary ripple counter A 2-bit ring counter A 2-bit shfit register with INP its serial input Answer is not listed A master-slave T-type Flip Flop with INP its T input A master-slave D-type Flip Flop with INP its D input A 2-bit Jhonson counter