Which of the following indicates signs of physical neglect?

The identification of physical neglect is centered around the failure to provide essential care that meets a person's basic needs. Signs of physical neglect often manifest through visible physical conditions or behaviors that indicate a lack of adequate care. In this case, the presence of dirty matted hair and extreme thirst clearly points to neglect in meeting basic hygiene and hydration needs.

A child's lack of hygiene, as showcased by dirty and matted hair, can indicate that they are not receiving the necessary care and attention to maintain personal cleanliness. Extreme thirst is also a significant indicator of neglect, suggesting that the individual is not receiving enough fluids, which is critical for health and well-being. Together, these signs highlight serious neglect in the provision of basic physical care, justifying the selection as the correct response regarding signs of physical neglect.

In contrast, the other options pertain more to different aspects of well-being or care rather than direct indicators of neglect. Issues like improper academic performance, being left alone frequently, or constantly being overtired might suggest emotional neglect, poor supervision, or fatigue for various reasons, but they do not explicitly showcase the fundamental physical neglect reflected in the condition of unkempt hygiene and lack of hydration.