Disaccharides undergo hydrolysis in slightly acidic solutions, but the reaction is very slow. A biological catalyst is introduced into a slightly acidic mixture containing three disaccharides: sucrose, maltose and lactose. The hydrolysis reaction is still slow for sucrose and maltose, but it is now much faster for lactose. Which statements about the catalyst are true?
- A1, 2 and 3
- B1 and 2 only
- C2 and 3 only
- D1 only