66. Demultiplexer

How do you plan to solve it?

/*Write your code here*/
module demux1to4(
    input d,
    input [1:0]s,
    output [3:0]y
);
assign y[0] = (s == 2'b00)? d : 1'b0;
assign y[1] = (s == 2'b01)? d : 1'b0;
assign y[2] = (s == 2'b10)? d : 1'b0;
assign y[3] = (s == 2'b11)? d : 1'b0;
endmodule