What is the latest write-once optical storage media?

Answer: Option C

The correct answer is Option C: WORM disk.
Let's break down why:

WORM stands for "Write Once Read Many".
This means you can write data to the disk once, and then read that data many times.
It's a type of optical storage where the data is permanently recorded.

Why not the other options?
Digital paper: This is still a developing technology and not a standard optical storage medium.
Magneto-optical disk: These are rewritable, not write-once.
CD-ROM disk: CD-ROMs are typically pre-recorded or mastered, and while they are read-only for the user after creation, the creation process itself is not "write-once" in the same way a WORM disk is. Furthermore, CD-ROM is an older technology.
None of the above: WORM is a valid write-once optical storage media.

Therefore, a WORM disk best fits the description of a latest write-once optical storage media.