State which of the following sets of quantum numbers would be possible and which impossible for an

Question:

State which of the following sets of quantum numbers would be possible and which impossible for an electron in an atom.
a. n = 2, l = 0, ml = 0, ms = + 1/2 b. n = 1, l = 1, ml = 0, ms = + 1/2 c. n = 0, l = 0, ml = 0, ms = 1/2 d. n = 2, l = 1, ml = –1, ms = 1/2 e. n = 2, l = 1, ml = –2, ms = +1/2