Which of the following is an indicator of child physical abuse?

Unexplained injuries or bruises serve as significant indicators of child physical abuse. Children who experience physical abuse may present with injuries that cannot be easily accounted for or seem inconsistent with the explanation given by the child or caregiver. These signs can include bruises, welts, fractures, or other marks on the child's body that suggest they have been harmed intentionally. Since such injuries are often not typical for children without experiences of abuse, they raise concerns among caregivers, educators, and healthcare providers about the child's safety and well-being.

The other options do not typically indicate physical abuse. Regular attendance at school is generally a sign of stability and does not relate to indicators of abuse. Consistent behavioral changes may point to various issues, including emotional or psychological problems, but are not specific to physical abuse. Strong social interactions with peers usually reflect a healthy social environment and do not suggest abuse. Therefore, the presence of unexplained injuries or bruises directly correlates with signs of physical harm and underscores the importance of vigilance and reporting in cases of suspected child abuse.