Which of the following is a potential sign of sexual exploitation in a child?

Avoidance of certain adults can be a significant indicator of potential sexual exploitation in a child. This behavior may suggest that the child feels uncomfortable or threatened by specific individuals, which could be related to experiences of abuse or exploitation. Children who are victims of sexual exploitation often show signs of distress or fear toward certain adults, which can manifest as avoidance. This reaction is a protective mechanism, indicating that the child may be trying to distance themselves from danger.

In contrast, other options like a sudden improvement in academic performance or an increased interest in participating in sports do not typically correlate with signs of exploitation. These behaviors could arise from a variety of positive factors such as support from parents or teachers, or personal growth, rather than indicating abuse. Similarly, a desire to stay home from school could stem from numerous non-abuse-related issues, such as general anxiety or illness, and does not specifically point to sexual exploitation. Hence, the avoidance of certain adults stands out as a more direct and concerning indicator of potential abuse.