Sound — practice question

Which row shows the velocity and wavelength for an ultrasound wave?

• A$330\,\text{m s}^{-1}$ and $6.6\,\text{cm}$
• B$890\,\text{m s}^{-1}$ and $89\,\text{cm}$
• C$1500\,\text{m s}^{-1}$ and $6.0\,\text{cm}$
• D$4000\,\text{m s}^{-1}$ and $25\,\text{cm}$