What is the resonance structure of carbon dioxide?

Carbon dioxide, or ${\text{CO}}_{2}$, has three resonance structures, out of which one is a major contributor.
The ${\text{CO}}_{2}$ molecule has a total of 16 valence electrons - 4 from carbon and 6 from each oxygen atom.
Here are the three resonance structures for ${\text{CO}}_{2}$, all accounting for the 16 valence electrons