I think the situation wherein someone's gain or benefit comes in exchange of another person's or people's expense would be named as an exploitative situation (since exploiting means using others for your benefit). In politics and the government, it is called a kleptocracy.
Answer:
d. "I was afraid. My body was also afraid of receiving a blow."
Explanation:
Basically the snowboarder is standing still which is considered to be potential energy potential because it has potential to move but it's not the answer with kinetic energy kinetic energy means that it is actually moving