Answer:
D. Tide Pools
Step-by-step explanation:
Tide pools typically experience the most extreme seasonal variation because they are located in the intertidal zone, which is the area of the shore that is covered and uncovered by the tides. As a result, the organisms that live in tide pools are exposed to extreme variations in temperature, salinity, and other environmental factors as the tides come in and go out. This can make life challenging for the organisms that live there, and can lead to high levels of seasonal variability in the tide pool ecosystem.