The figure indicates the enegry level diagram of an atom and the origin of six spectral lines in emission (e.g. line no.`5` series from the transition from level `B` to `A`). The following spectral lines will also occur in the absorption spectrum
A. 1,4,6
B. 4,5,6
C. 1,2,3
D. 1,2,3,4,5,6