Violet and indigo light have the shortest wavelengths in the visible-light spectrum. In order of increasing wavelength, which three colours come immediately after indigo?
- Ablue $\rightarrow$ green $\rightarrow$ orange
- Bblue $\rightarrow$ green $\rightarrow$ yellow
- Cgreen $\rightarrow$ blue $\rightarrow$ yellow
- Dyellow $\rightarrow$ green $\rightarrow$ orange