Match the following :
B.E.-Binding energy
I.E.-Ionization energy
`{:("Column-I","Column-II"),((A)"B.E. of"He^(+)"atom in an excited state" ,(p)"Infrared region"),((B)7to3"transition in H atom",(q)"3.4 ev"),((C )5to1 "transition in H-atom",(r)"13.6 ev"),((D)"series limit of Balmer series in H-atom",(s) "10 Spectral lines observed"),(,(t)"Ultra violet region"):}`