(Tbh it's all of these I would think) But mainly Heart Issues.
Answer:
engaging in positive peer pressure
Explanation:
they are encouraging her to do better by putting themselves in a spot as to do better with her. peer pressure because she will be influenced by their actions and positive because they are doing it in hopes that she will improve.
The pigment that is responsible for the light yellow or dark yellow color in iron is urochrome.
