Which UV ray types are listed in the material?

Which UV ray types are listed in the material?

• A. UVC only
• B. UVA and UVB only
• C. UVA, UVB, and UVC
• D. UV light is not mentioned

Answer: (C)

UV rays are categorized by wavelength into UVA, UVB, and UVC. The material lists all three types, so it reflects the full spectrum of UV categories discussed. That makes the option including UVA, UVB, and UVC the best fit. While UVC is largely blocked by the atmosphere in natural sunlight, exam materials often include it for completeness. The other possibilities omit one or more categories or claim UV light isn’t mentioned, which doesn’t align with what the material states.

UV rays are categorized by wavelength into UVA, UVB, and UVC. The material lists all three types, so it reflects the full spectrum of UV categories discussed. That makes the option including UVA, UVB, and UVC the best fit. While UVC is largely blocked by the atmosphere in natural sunlight, exam materials often include it for completeness. The other possibilities omit one or more categories or claim UV light isn’t mentioned, which doesn’t align with what the material states.