Which of the following is a sign of abuse that may manifest as unusual behavior in children?

Unusual behavior in children that indicates potential abuse can take many forms, one of which is exhibiting bizarre or sophisticated sexual behavior. This type of behavior is particularly concerning, as it may suggest that a child has been exposed to inappropriate sexual situations or experiences that are not typical for their developmental stage. Such behavior often stands out as significantly different from what peers might exhibit and can be indicative of trauma or abuse in the child's life.

In contrast, other options do not accurately reflect signs of abuse. For instance, a reduction in media consumption or an improvement in school attendance may align more with changes in interests or general life circumstances rather than a specific indicator of abuse. Engaging in dangerous play at recess could suggest risk-taking behavior, which may arise from various factors but is not solely indicative of abuse. Hence, bizarre or sophisticated sexual behavior is the most telling sign in this context.