Answer:
The Challenges that illustrated the following situations are:
1. The death of Rina's mother in a car accident caused her to lose her appetite and interest in human interaction.
2. Justin's class absence was linked to bullying.
3. Amy thought and felt she was fat.
4. Ken's company with friends led him to engage in smoking and drinking liquor.
5. Joey started keeping late nights after learning to play online games.
Step-by-step explanation:
Challenges faced by these persons had some origins. Their origins formed the nuclei of their problems or difficulties in their present situations. I have identified the sources of the challenges, as presented in the text.