Final answer:
It is indeed true that cranberry beds are flooded with 6 to 8 inches of water to harvest cranberries. This technique allows the berries to float, making it easier to collect them. Answers involving water potential are not directly related to cranberry harvesting but describe general plant water absorption principles.
Step-by-step explanation:
The question concerns the practice of harvesting cranberries and involves understanding water potential factors that impact crop cultivation. To address the given statement, when harvesting cranberries, it is true that the beds are flooded with water above the vines, typically around 6 to 8 inches. This method is used because it facilitates the separation of cranberries from the vines as the berries float to the surface, making them easier to collect.
Regarding water potential, the answer depends on context. However, the given answers a), b), and c) incorrectly apply the concept of water potential to the question about cranberry harvesting. In the context of plant water potential, answer c) is right in a general sense: a plant will absorb water from the soil when the overall water potential of the plant is more negative than that of the soil.