Answer :
The correct answer is: C. fall
Explanation:
1. Seabirds that eat small crabs living in the thick kelp canopy would have to migrate to another region during the fall season due to a lack of food.
2. Fall is the time when food sources like small crabs in the kelp canopy may become scarce as environmental conditions change.
3. Migrating to another region allows the seabirds to find new feeding grounds with an abundance of food to sustain them through the season.
In summary, during the fall season, the migratory seabirds would need to migrate to another region to find food as their current food source diminishes.
C fall, the birds will have to migrate to find another food source to survive the changing weather and the upcoming winter