If someone says, "earth and all of its contents were created for the betterment of human beings, so as long as something is good for humans, it is good for the whole earth," what ethical perspective would he or she hold?

The correct answer is anthropocentric.

Explanation:

Anthropocentrism refers to an anthropocentric or human-centered point of view. Anthropocentrism signifies towards the view that humans are the only, or primary holders of ethical standing. It is the belief that humans are the most essential object in the universe. The anthropocentrism regards or infers the world in terms of human involvements and values.  

It can also be termed as humanocentrism. It is a prime concept in the branch of environmental philosophy and environmental ethics, where it is generally regarded to be the prime reason for the issues created due to human activities within the ecosphere.  

the correct answer is b