The electromagnetic spectrum<span> is a continuum of all</span>electromagnetic waves<span> arranged according to frequency and wavelength. The sun, earth, and other bodies radiate </span>electromagnetic<span> energy of varying wavelengths. </span>Electromagnetic<span> energy passes through space at the speed of light in the form of sinusoidal</span>waves<span>.</span>
The answer is C) because it was quoted in the article. When a writer uses another article for their work they cite (put in quotations) the title of the article and anything they used from it or it will be plagiarizing
