Answer:
The answer here is C: the botanist
Explanation:
This is the only plausible answer because geologists study the earth's physical structure and substance. This has nothing to do with the mangroves, so this can't be the answer. The same goes for the anthropologist, who studies ancient human origins. The first option sounds ok, because zoologists study crabs, which are feeding directly on the mangrove trees, and maybe the decline of mangroves is due to them. But they would not be the first scientist to ask, which is the question. The first person to ask would be the botanist, who studies trees. They would be the most likely to know the answer.
