Concept:A two-input logic gate has two incoming signals and one outgoing signal.
Explanation:In Fig. 1, X and Y are placed on the left side of the gate.
Therefore, X and Y represent the input signals to the gate.
Z is placed on the right side of the gate, where the final result comes out.
So, Z represents the output signal of the gate.
The gate receives both X and Y as inputs and produces Z as its output.
Thus, the correct order is input, input, and output.
Answer:D. input, input and output signals
