The only item on that list that's an electromagnetic wave is C). shortwave radio waves.
The answer should be (C) short wave radio waves.
Electromagnetic waves are transverse waves, similar to shortwave radio waves.
The correct answer to the question about electromagnetic waves is C: Shortwave radio waves. They are a type of electromagnetic radiation used in communication, while the other options do not represent electromagnetic waves. Only electromagnetic waves can travel through a vacuum, unlike the other examples provided.
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