Resonance structure of a molecule should (i) Identical arrangements of atoms. (ii) nearly the same energy content. (iii) the same number of paired electrons. (iv) identical bonding

Question

$ (a)\;(i),(ii),and (iii) \\ (b)\;(i),(ii) and (iv) \\ (c)\;(ii),(iii)and (iv) \\ (d)\;(i) ,(iii) and (iv) $