Natural rubber is a polymer of isoprene ($2$-methyl buta-$1$,$3$-diene). If natural rubber is treated with ${\mathrm{O}}_3$ followed by $\mathrm{Zn}/{\mathrm{H}}_2\mathrm{O}$, the final product will be

$\mathrm{A}$ & $\mathrm{B}$ are respectively

The most suitable reagent for given conversion is

In above reaction product $\left(\mathrm{B}\right)$ is

In above reaction product $\left(\mathrm{C}\right)$ is

Consider the following two structures

Choose the correct statement

Product $\left(\mathrm{C}\right)$ is