Which of the following correctly represents the values of "a" and "b" at the 40th nanosecond according to the above verilog code?

a=2b01 b=2b11
	a=2b11 b=2b00
	a=2b11 b=2b11
	a=2b01 b=2b00

timescale I ns / 1 ps module TEST_gate; reg[1:0]a,b; initial begin a=2'600; #10 b=2'bll; #10 a=2'bll; end initial begin b=2'600; #40 a=2'b0l; end initial #60 Sfinish; endmodule