Final answer:
The negative impacts of gender bias are depicted in a female student avoiding advanced math classes despite her interest and a little boy not expressing sadness, both due to societal gender norms.
Therefore, options C and D are correct.
Step-by-step explanation:
The sentences that describe a negative impact of gender bias are:
- c. A female student decides not to take trigonometry or calculus even though she loves math.
- d. A little boy refuses to say that he's feeling sad after his best friend moves away.
These scenarios exemplify how societal expectations and stereotypes, rooted in gender bias, can dissuade individuals from pursuing their interests or expressing their emotions, leading to negative personal and professional consequences.