Correct option is A
A Schmitt trigger is a type of comparator circuit with hysteresis, meaning it has two distinct threshold voltage levels:
Upper threshold voltage (VH): Determines when the output switches to HIGH.
Lower threshold voltage (VL): Determines when the output switches to LOW.
The output of a Schmitt trigger circuit can only be in one of
two states:
HIGH state (1).
LOW state (0).
Thus, it is a binary circuit and has 2 output states.
