Which of the following practices reflects a basic healthful habit in early education?

Brushing teeth is an essential healthful habit, particularly in early education, as it establishes routines for personal hygiene that are crucial for overall health and well-being. Regular tooth brushing helps prevent dental issues, such as cavities and gum disease, which can affect a child's health and self-esteem. Teaching children the importance of oral hygiene instills lifelong habits that can lead to better health outcomes. By incorporating this practice in an educational setting, educators can support not only the physical health of children but also their understanding of self-care and responsibility.

In contrast, while sitting quietly during class, completing homework, and listening to music can contribute to a positive learning environment, they do not specifically address fundamental health practices. Sitting quietly is more about behavior management, homework primarily focuses on academic achievement, and listening to music often serves as a recreational activity rather than a health-related habit.