Another student sets up the apparatus correctly. Figure 3 represents the student's results. What two conclusions can be made from Figure 3? Select two options.

Interpreting the chromatogram in Figure 3: - **Sample A:** This lane shows only one spot. This indicates that the colour extracted from flower A is a single, pure substance. - **Sample B:** This lane also shows only one spot, so the colour from flower B is also a pure substance. - **Sample C:** This lane shows two separate spots at different heights. This indicates that the colour extracted from flower C is a mixture of at least two different substances. - **Comparison:** The spot from B is at the same height as the lower spot from C. This means that flower B and flower C share a common colouring substance. The spot from A is at a different height to all others. Based on this, the two most direct and certain conclusions are that A is a single pure colour and C is a mixture.