Electromagnetic spectrum — practice question

Which wavelength could be a value for radiation in the ultra-violet part of the electromagnetic spectrum?

• A$3 \times 10^{-2} \text{ m}$
• B$3 \times 10^{-5} \text{ m}$
• C$3 \times 10^{-8} \text{ m}$
• D$3 \times 10^{-10} \text{ m}$