Answer:
D, most likely thats what I was taught .
Someone can install an operating system by disk or removable storage media.
Disk being floppy, tape or commonly a DVD.
Removable storage being a USBdrive.
Well, dont know ;-: PROBLEM?
What's the question your asking here cause I'd be happy to answer it.
Answer:
If u watched him scan then he is good
Explanation: