JEE Main 2021 Chemistry question

Given below are two statements : Statement I : Bohr's theory accounts for the stability and line spectrum of ion. Statement II : Bohr's theory was unable to explain the splitting of spectral lines in the presence of a magnetic field. In the light of the above statements, choose the most appropriate answer from the options given below :

• (A)Both statement I and statement II are true.
• (B)Statement I is false but statement II is true.Correct
• (C)Both statement I and statement II are false.
• (D)Statement I is true but statement II is false.