Which of the following pairs represents resonating structures ?

Options

A. `H-C=overset(o+)N-overset(Theta)underset(..)O:and H-overset(..)underset(..)O-C-=N:`
B. `H-overset(o+)underset(..)O=C=overset(Theta)overset(..)N:and H-overset(..)underset(..)O-C-=N:`
C. `H-C=overset(o+)N-overset(Theta)underset(..)O:andH-overset(O)overset(||)C-overset(..)N:`
D. `H-overset(..)underset(..)O-C-=overset(Theta)N and H-overset(..)N=C=overset(..)O:`

Answer

B