Bees use 2-methylbutyl ethanoate as an ‘alarm’ pheromone to warn other bees. Which starting materials are needed to make 2-methylbutyl ethanoate?
- A$\text{CH}_3\text{CH}_2\text{OH}$ and $\text{CH}_3\text{CH}_2\text{CH(CH}_3)\text{CO}_2\text{H}$
- B$\text{CH}_3\text{CO}_2\text{H}$ and $\text{CH}_3\text{CH}_2\text{CH(CH}_3)\text{CH}_2\text{OH}$
- C$\text{CH}_3\text{CH}_2\text{OH}$ and $\text{CH}_3\text{CH}_2\text{CH(CH}_3)\text{CH}_2\text{CO}_2\text{H}$
- D$\text{CH}_3\text{CO}_2\text{H}$ and $\text{CH}_3\text{CH}_2\text{CH(CH}_3)\text{CH}_2\text{CO}_2\text{H}$