Answer: Hi im Sergeant von im here to help you in any way ma'm;)
I would think it would be the last one ( A SCANNER ) i hope this maybe the right answer if not im sorry at least i gave it a shot
Step-by-step explanation:
The last one " a scanner " is the one i would choose ma'm it seems logic the the Question and seems too fit in with the rest ;)
Have a good day ma'm