For which one of the following sets of four quantum numbers an electron will have the…

For which one of the following sets of four quantum numbers an electron will have the highest energy\[\begin{array}{lllll} & \mathrm{n} & \ell & \mathrm{~m} & \mathrm{~s} \\ \text { (a) } & 3 & 2 & 1 & 1 / 2 \\ \text { (b) } & 4 & 1 & 0 & -1 / 2 \\ \text { (c) } & 4 & 2 & -1 & 1 / 2 \\ \text { (d) } & 5 & 0 & 0 & -1 / 2 \end{array}\]