In the diagram, a wave is shown. Which row is the correct one?
- Aamplitude $= 1.0\,\text{cm}$, wavelength $= 4.0\,\text{cm}$
- Bamplitude $= 1.0\,\text{cm}$, wavelength $= 8.0\,\text{cm}$
- Camplitude $= 2.0\,\text{cm}$, wavelength $= 4.0\,\text{cm}$
- Damplitude $= 2.0\,\text{cm}$, wavelength $= 8.0\,\text{cm}$