Which of the following is a sign of potential neglect?

Malnutrition is a clear indicator of potential neglect as it reflects a lack of essential care and resources necessary for a child's well-being. It demonstrates that a child's basic needs, particularly their nutritional requirements, are not being adequately met. Neglect can manifest in various ways, such as failing to provide appropriate food, leading to malnutrition or other health issues. Children who are malnourished may exhibit physical symptoms and behavioral changes due to hunger or nutritional deficiencies.

The other options present signs of positive engagement and care. Positive interactions with peers, regular school attendance, and involvement in extracurricular activities indicate that a child is likely receiving adequate support, supervision, and resources from caregivers. These aspects normally suggest a nurturing environment, whereas malnutrition starkly contrasts that by indicating a significant oversight or failure in providing necessary care.