The diagram illustrates a wave. What are the amplitude and wavelength of this wave?
- Aamplitude $= 3\,\text{cm}$, wavelength $= 4\,\text{cm}$
- Bamplitude $= 3\,\text{cm}$, wavelength $= 8\,\text{cm}$
- Camplitude $= 6\,\text{cm}$, wavelength $= 4\,\text{cm}$
- Damplitude $= 6\,\text{cm}$, wavelength $= 8\,\text{cm}$