Answer: a. It incorporates the conservation movement.
Step-by-step explanation:
The environmental movement can be define as the ecological movement which favors the protection of the environment by addressing the issues like conservation of natural resources, prevention of pollution and conservation and preservation of wildlife. It aims at conserving and preserving the integrity of the environment on the individual, society and government level by creating awareness about environmental issues.
On the basis of the above explanation, a. It incorporates the conservation movement is the correct option.