Which Transition Shown Below Will Require the Absorption of the Shortest

Multiple Choice

Which transition shown below will require the absorption of the shortest wavelength photon?

A) n = 1 to n = 3
B) n = 2 to n = 3
C) n = 1 to n = 5
D) n = 8 to n = 1
E) All of the above will require the same wavelength photon.