The graph shows the diameter of a tree trunk at different times. Which statement is the correct one?
- AJ shows the expansion of the trunk as water fills the xylem during transpiration.
- BK shows a reduction in diameter of the trunk as water is lost from the phloem due to translocation.
- CK shows a reduction in diameter of the trunk due to water held in tension in the xylem.
- DL shows the expansion of the trunk as the phloem tissue acts as a sink at night.