. In Bohr series of lines of hydrogen spectrum third line from
the red end corresponds to which one of the following inner orbit jumps of electron for Bohr's orbit in atom of hydrogen
A: 4→ 1
B: 2→ 5
C: 3→ 2
D: 5→ 2
Balmer series denotes the visible region, i.e., red end.
It has the values