Estuaries Are Locations Where Rivers Flow into Oceans, with Tidal

Estuaries are locations where rivers flow into oceans, with tidal shifts changing the salt concentrations. Plants and animals that live in estuaries face a dilemma in maintaining water balance inside their cells. During high tide they are in salt water, while at low tide they are in fresh water.
-During high tide a plant or animal would be at risk of

A) dehydration by facilitated diffusion of salts.
B) cells bursting due to active transport of salts.
C) dehydration by osmosis of water.
D) cells bursting by osmosis of water.
E) dehydration due to active transport of salts.