Stages 1, 2, 3 and 4 are carried out to test for a non-reducing sugar. 1. Place $5\,\text{cm}^3$ of solution in a test-tube. 2. Add a few drops of acid. 3. Neutralise using alkali. 4. Add $6\,\text{cm}^3$ of Benedict’s solution. At what point is the solution heated or boiled?
- Abetween steps 1 and 2
- Bbetween steps 2 and 3, and after step 4
- Cbetween steps 2 and 3 only
- Dafter step 4 only