Final answer:
Shared responsibility is primarily associated with environmental ethics, which focuses on ethical conduct regarding the natural world and addresses collective obligations for sustainability and minimal environmental harm.
Step-by-step explanation:
Shared responsibility is a core concept of environmental ethics, which is a domain within applied ethics that explores our relationship with the natural world and the ethical conduct in our interactions with it. This field examines critical aspects like political and legal dimensions, the intrinsic value of nature, and the equitable distribution of environmental impacts globally. It emphasizes our collective moral obligations to reduce pollution, foster sustainable practices, and minimize environmental harm due to human activity.
Answer: A. Ethics