Answer:
A
Explanation: the definition of ecotourism
tourism directed toward exotic, often threatened, natural environments, intended to support conservation efforts and observe wildlife.
Free (someone or something) from a constraint or difficulty
The correct answers are D and E.
In "The Immigrant Contribution," Kennedy stated that, even though people migrate to the United States for a wide variety of reasons, he discovered that nearly all of them share a hope to gain personal and economic freedom.