Chemistry · Structure of atom

Given below are two statements:\n Statement I: The electron spin quantum number (\( m_s \)) was introduced to explain the splitting of spectral lines in magnetic fields and doublet/triplet structures.\n Statement II: Spin angular momentum of an electron is a vector quantity that can have two orientations relative to a chosen axis, designated as \( +\frac{1}{2} \) and \( -\frac{1}{2} \). \nIn the light of the above statements, choose the most appropriate answer from the options given below:

1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.