Answer:
The correct answer is B. The legislation that was created to protect animals who were few in numbers was the Endangered Species Act.
Step-by-step explanation:
The Endangered Species Act of 1973 is the largest of the dozens of environmental laws that the United States of America passed in the 1970s. As written in Article 2 of the Act, it was created to protect critically endangered species as a "consequence of economic growth and development proved by appropriate concern and conservation".