Limonene is 1-methyl-4-(prop-1-en-2-yl)cyclohexene, $\mathrm{C}{}_{10}\mathrm{H}{}_{16}$, with one ring double bond and one isopropenyl double bond. It is treated with excess $\mathrm{O}{}_3$, followed by dimethyl sulfide. Which description is correct?

1. A2 mol of $\mathrm{O}{}_3$ are consumed per mole, and two organic products form: methanal and one acyclic keto-aldehyde-ketone $\mathrm{C}{}_9\mathrm{H}{}_{14}\mathrm{O}{}_3$
2. B2 mol of $\mathrm{O}{}_3$ are consumed per mole, and three organic products form: methanal, propanone and a cyclic ketone
3. C1 mol of $\mathrm{O}{}_3$ is consumed per mole, and two organic products form
4. D3 mol of $\mathrm{O}{}_3$ are consumed per mole, and the product is a single compound