JEE Main 1999 Chemistry question on Atomic Structure

The electrons, identified by quantum numbers $n$ and $l$,
(i) $n = 4$, $l = 1$, (ii) $n = 4$, $l = 0$, (iii) $n = 3$, $l = 2$, (iv) $n = 3$, $l = 1$
can be placed in order of increasing energy, from the lowest to highest, as