Two electrons that are found in the same atom have different quantum number sets. One of the electrons has the quantum number set (2, 1, -1, + 1/2), and the other has the quantum number set (2, 1, -1, -1/2). They share which one of the following?
a. same sublevel, but are in different orbitals.
b. same orbital, but have different spin directions.
c. same energy level, but are in different sublevels.
d. same type of sublevel, but are found in different energy levels.