Final answer:
Infrared has a longer wavelength and lower frequency than ultraviolet.
Step-by-step explanation:
C. Infrared has a longer wavelength and lower frequency than ultraviolet.
The statement is correct because infrared waves have lower frequencies and longer wavelengths compared to ultraviolet waves. Infrared radiation lies below visible light in frequency and is produced by thermal motion and the vibration and rotation of atoms and molecules. On the other hand, ultraviolet radiation starts with frequencies just above violet in the visible range and is produced primarily by electronic transitions in atoms and molecules.