Beetroot root cells contain a red pigment. If small pieces of root tissue are placed in cold water, some of the red pigment escapes from the cells into the water. An experiment was performed to examine how temperature affects the amount of red pigment lost from the root cells. It was observed that as the water temperature increased, the rate at which red pigment left the root cells also increased. Which of the following statements could account for this pattern?
- A1 and 2
- B2 and 3
- C2 only
- D3 only