Which of the following is an adaptation that would make the most sense in a fully-submerged water plant? the ability to expel carbon dioxide from its roots. the ability to store water in its stem. the ability to live in low light conditions. the ability to grow rigid roots and stems.

The ability to live in low light conditions.

Explanation:

The ability of the plant to live in lower light conditions will help it to grow in such environment. The adaptation is required by the plants which grows in the water and the plant is completely submerged.

The ability to survive in low and dim light is required because there is no light available in the depth of water.

Such an adaptation is required to the plants that are fully submerged in water.