The same sensory input

A) Has the same effect on locomotion no matter when it is applied during the step cycle, showing that sensory input has no effect on locomotion
B) Has the same effect on locomotion no matter when it is applied during the step cycle, showing that sensory input has an effect on locomotion
C) Has different effects on locomotion depending on when it is applied during the step cycle, showing that sensory input has no effect on locomotion
D) Has different effects on locomotion depending on when it is applied during the step cycle, showing that sensory input has an effect on locomotion