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

A. (iv) < (ii) < (iii) < (i)
B. (ii) < (iv) < (i) < (iii)
C. (i) < (iii) < (ii) < (iv)
D. (iii) < (i) < (iv) < (ii)