What behavior makes a counter a special case of a finite sta

What behavior makes a counter a special case of a finite state machine? The state encoding for a counter can be selected to minimize the next state logic. A counter only has one state that repeats over and over while the output is incremented or decremented. A counter requires one state for each bit within the counter output vector. A counter traverses through its states in a linear manner and each state represents a unique output value.

Solution

A counter traverses through its states in a linear manner and each state represents a unique output value.