What issue arises when a medical or dental condition is not treated in a child?

When a medical or dental condition is not treated in a child, it directly leads to a lack of dental or medical care. This inability to address health issues can result in significant negative consequences for the child's physical and mental well-being. Unattended medical or dental conditions can lead to more severe health problems, chronic pain, and developmental delays. Moreover, untreated health conditions can interfere with a child's ability to thrive academically and socially, as they may experience absenteeism in school or diminished participation in activities.

By identifying the critical aspect of insufficient healthcare, option C highlights a key concern about the implications of neglecting a child's medical and dental needs. This understanding is essential for advocating for children's health and safety and ensuring that they receive the care they require.