Identify the correct resonance structures of carbon dioxide from the ones given below :

A Colourless crystalline compound $\left(\mathrm{A}\right)$, is warmed with $\mathrm{Al}$ and $\mathrm{NaOH}$, solution gives a gas which produces fumes with $\mathrm{HCl}$, brown ppt. When passed through Nessler's reagent and is oxidised to a colourless gas when passed over heated $\mathrm{CuO}$. The latter does not support to combustion, however, $\mathrm{Mg}$, continues burning in it producing white solid. The compound $\left(\mathrm{A}\right)$, when heated along gives a brown coloured gas and another gas $\left(\mathrm{B}\right)$, which is essential for living beings, leaving behind a yellow solid $\left(\mathrm{C}\right)$. The solid $\left(\mathrm{C}\right)$, gives the following reactions.

(i) It dissolves in dil. ${\mathrm{HNO}}_3$, giving a colourless solution which gives white ppt.On addition of dilute $\mathrm{HCl}$, which is soluble in hot and reappears on cooling.

(ii) When heated in presence of air, the yellow solid $\left(\mathrm{C}\right)$, changes to red powder, Identify $\left(\mathrm{A}\right),\left(\mathrm{B}\right)$ and $\left(\mathrm{C}\right)$, And the equations involved.