Which statement is true regarding the signs of a healthy child?

A balanced range of emotions is an important indicator of a child's overall well-being. Healthy children demonstrate appropriate emotional responses to various situations, showing joy, sadness, excitement, and frustration within expected limits for their age. This emotional balance is crucial for their mental health and social development, allowing them to form healthy relationships and cope with challenges.

In contrast, steady weight gain is generally expected in healthy children, particularly during certain growth spurts, and not gaining weight steadily could indicate a health issue (thus making the first option false). The notion that healthy children are always hyper and energetic is misleading, as children also need periods of rest and calmness, and excessive hyperactivity can be a sign of problems rather than health. Lastly, a healthy child typically shows curiosity and interest in their surroundings, indicating normal cognitive and social development; showing no interest would suggest potential developmental concerns.