Resonance in carbonate ion $$CO_3^{2-}$$ i

shown with three resonance structures. Which of the following is true?

A

It is possible to identify each structure individually by some physical or chemical method.

B

All these structures are in dynamic equilibrium with each other.

C

Each structure exists for equal amount of time.

D

$$CO_3^{2-}$$ has a single structure i.e., resonance hybrid of the above three structures.