The correct order of increasing s-character (in percentage) in the hybrid orbitals of following molecules/ions is :
(I) CO32- (II) XeF4 (III) I3- (IV) NCl3 (V) BeCl2
a. II < III < IV < I < V
b. II < IV < III < V < I
c. III < II < I < V < IV
d. II < IV < III < I < V