Final answer:
After reading the story, it is clear that the answer to who is biased is option c: The man is biased towards basketball and is determined to push Sierra into playing, despite her lack of interest in the sport.
Step-by-step explanation:
The story presented showcases a situation where the character Sierra faces repeated encouragement from a basketball coach to play basketball, despite her preference for volleyball. After reading the story, it is clear that the answer to who is biased is option c: The man is biased towards basketball and is determined to push Sierra into playing, despite her lack of interest in the sport.
It is evident that Sierra's preference lies with volleyball, a sport she identifies with and enjoys. The man, seemingly the basketball coach, displays a clear bias for basketball — perhaps seeing Sierra's height as an asset he can utilize — and is unwilling to accept her preferred choice of sport.
This bias can stem from the coach's personal preference for basketball or belief in her potential within that sport. Sierra, on the other hand, has a personal affinity for volleyball, one that is not influenced by her previous experiences with basketball, which are mentioned to involve bullying. Thus, while Sierra has her preferences, they are not presented as biases in the narrative, only as personal choices.