Which of the following statements is FALSE ?
1) In a combinational logic circuit the output is a function of only the present inputs (assuming the last change in input was at least one propagation delay earlier).
2) In a sequential logic circuit the output is a function of both the present and past inputs.
3) Sequential logic circuits can be used to remember information in the form of binary digits (or bits).
4) Sequential logic circuits are a special type of combinational logic circuit.