Consider the following statements:1. A Schmitt trigger circuit can be emitter-coupled bi-stable circuit.2. Schmitt trigger circuit exhibits hysteresis phenomenon.3. The output of a Schmitt trigger will be triangular if the input is square wave.Which of these statements are correct?

Consider the following statements:1. A Schmitt trigger circuit can be

1.	Consider the following statements:1. A Schmitt trigger circuit can be emitter-coupled bi-stable circuit.2. Schmitt trigger circuit exhibits hysteresis phenomenon.3. The output of a Schmitt trigger will be triangular if the input is square wave.Which of these statements are correct?
A.	1, 2 and 3
B.	1 and 2 only
C.	2 and 3 only
D.	1 and 3 only
Answer» C. 2 and 3 only