$\beta$-carotene gives carrots their orange colour. Hot, concentrated, acidified $\text{KMnO}_4$ oxidises $\beta$-carotene. During oxidation of one molecule of $\beta$-carotene in this manner, a large number of product molecules are produced. How many of these product molecules have a ketone functional group?
- A4
- B6
- C9
- D11