Which of the following is a common sign of neglect in children?

Frequent absences from school are indeed a common sign of neglect in children. When a child is experiencing neglect, it can manifest in various ways, including a lack of supervision or support from caregivers that may hinder their ability to attend school regularly. Absenteeism may indicate that the child is not provided with adequate care, leading to missed educational opportunities and social interactions that are critical for their development.

The other options, while they may be associated with different forms of abuse or issues, do not specifically indicate neglect as directly as school absences do. For example, physical injuries might suggest abuse rather than neglect, rebellious behavior could stem from various emotional or psychological factors beyond neglect, and fear of adults might indicate a traumatic experience but does not inherently signify neglect. Thus, the connection between frequent school absences and neglect is particularly strong within the context of evaluating a child's safety and well-being.