A student carried out an investigation into the hydrolysis of the lipid present in high-fat milk, using the enzyme lipase. • $1\,\text{cm}^3$ of enzyme solution was added to $10\,\text{cm}^3$ of high-fat milk. • The temperature was held constant. • The pH of the reaction mixture was measured at time $0$ minutes and then every minute for $20$ minutes. Which statements are supported by the results of the investigation?
- A1, 2 and 3
- B1 and 2 only
- C1 and 3 only
- D2 and 3 only