Concept:Conservation means protecting and wisely managing natural resources and biodiversity for future generations.
Explanation:Protecting endangered species helps maintain biodiversity and keeps the ecosystem balanced.
Preserving trees mainly for timber is resource exploitation, not true conservation.
Permitting hunting activities harms wildlife populations.
Providing income for the government does not directly support the goal of conservation.
Therefore, the action that supports conservation is protecting endangered species.
Answer:A. protect endangered species