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First developed to store digital music. Later, the CD technology was adapted to store digital computer data. A CD:

~Can hold 74-80min of audio
~Is 120mm in diameter
~Is 1.2mm thick

[When multiple numbers are listed together(ex. 32x/12x/48x), the first number is the record speed, the second number is the rewrite speed, and the last number is the read speed. If the drive does not perform rewrite functions, the middle number will be omitted]

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Answer:

Option 3.

Step-by-step explanation:

A CD is 1.2mm thick.

User Nikolay Mamaev
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