Jack lost all the data he saved on his desktop because of a power outage while working on a presentation on which of these computer components must jack have saved his data

If the choices are:

A. Random Access Memory (RAM)

B. Read-only Memory (ROM)

C. hard disk

D. flash memory

Then it should be your hard disk that saved his data. This is because the hard disk has a filepath that leads to the data where the presentation was found. It was saved before the power outage. If it wasn't saved and then the power went out, you lose the data.

Most presentation-editing programs like PowerPoint will keep a temporary copy of the presentation.

It can't be the flash memory, because that comes from a USB flash drive.

It can't be the ROM, because if the presentation was in there, it might be a temporary item.

So, you have the C. hard disk

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