The primary difference between a dvd and a cd is that one is read and written using optics while the other uses magnets.
true
false

The given statement is false.

Explanation:

Both CD and DVD uses Optical medium to read and write data. The storage capacity and the quality of the audio /video tracks differ for these.

A DVD can store more than what a CD can store and DVD provide quality reading and writing towards the disk especially for audio and video tracks.

The capacity of CD will be around 700 MB where as the DVD would be six times more than a CD. A CD player cannot play DVDs but a DVD player can play CD."

this would start to sound a little like mortal combat

b. xor is the correct answer