Consider the following statements about Schmitt trigger(a) The output of a Schmitt Trigger is a square wave when input is a sine wave(b) Schmitt Trigger can be used in Triangular wave and sawtooth wave generators(c) The comparator with negative feedback is said to exhibit hysteresis, a dead band condition(d) The output is impulse waveform when the input to Schmitt Trigger is a sawtooth waveWhich of the above statements are correct?

• A. (a) and (b)
• B. (b) and (c)
• C. (c) and (d)
• D. (b) and (d)