During the 1930s, polish scientists reproduced a german device called enigma. just before the beginning of wwii, they sent this machine to britain. why was possession of this machine an advantage to the allies? a. enigma allowed the allies to send coded signals germany could not decipher. b. enigma allowed the allies to decipher coded german signals. c. enigma allowed the allies to jam german radar signals. d. enigma allowed the allies to create a radar network that could detect approaching luftwaffe air raids.