What adaptation do arrowroot plants exhibit?

Arrowroot plants exhibit the adaptation of being able to grow submerged in water. This capability allows them to thrive in wetland environments, where they can take advantage of the nutrient-rich soil often found in such areas. The structure of their rhizomes enables them to anchor securely in saturated soils, facilitating a stable growth environment despite fluctuating water levels. This adaptation is particularly beneficial for survival in ecosystems where other plant species might struggle to persist due to excess moisture.

The other options do not accurately reflect the typical growing conditions of arrowroot plants. They are not adapted to desert conditions, shaded areas, or high salinity, which makes option A the most appropriate choice for describing their unique adaptation.