Which of the following is true for the different series of emission lines (e.g., Lyman, Balmer, Paschen, etc.) observed from a hydrogen atom discharge lamp.
a) The emission lines in a particular series all terminate at the same level.
b) The emission lines in the Balmer series all terminate in n=1 and originate from different excited states.
c) The emission lines in a particular series all originate from the same level.
d) The emission lines all occur in the visible region of the electromagnetic spectrum.