I think the answer is A. I hope I helped.
Answer:
Ecologist
Explanation:
An ecologist is a person that studies the relationships between the environment and a living thing. They also try to understand how human actions adversely affect the environment
Therefore, the designation of a professional that is called upon to help determine new ways for an existing manufacturing company to manage a local waterway and help preserve the wildlife that depend on it is the job of an ecologist.
In an outline capital letters can indicate many different things, but almost always they are used to signal a change in topic, or at lease a change in subtopic.