Sickly and scarcely are the adverbs in this sentence. I hope this helps :)
Answer:
The obvious answer is B the other options would just be for quality (well not obvious but easy to figure out).
Bro I need more I don't get this you are confusing me
Answer:okay
Explanation:
Scientists are surveying sea turtles in Pacific coral reefs to track different species' population trends
hope its help