Correct Answer: A

Rationale: When assessing a child for chest indrawing, it is important to note that chest indrawing should NOT be present at all times, as this would suggest a significant respiratory distress. Chest indrawing is an abnormal inward movement of the lower chest wall during inhalation, indicating increased work of breathing. Therefore, the absence of chest indrawing during normal breathing is a normal finding. The healthcare provider should observe for the lower chest moving in with each breath, which is abnormal, while ensuring that the child is calm during the assessment.

Correct Answer: C

Rationale: The classic definition of public health originates from Dr. C. E. Winslow. He defined public health as 'the science and art of preventing disease, prolonging life, and promoting health through organized efforts and informed choices of society, organizations, public and private, communities, and individuals.' Winslow's definition is widely recognized and used as a foundational concept in the field of public health.

Correct Answer: D

Rationale: James' illness can be classified as 'No pneumonia' because there are no general danger signs present, and his breathing rate is normal, indicating the absence of pneumonia.

Correct Answer: B

Rationale: Tertiary level of care encompasses specialized care provided by experts in medical centers, regional, and provincial hospitals. This level of care focuses on advanced diagnostic, treatment, and management of complex health conditions beyond what primary and secondary care levels offer.

Correct Answer: D

Rationale: The classic definition of public health is focused on the science and art of preventing disease, prolonging life, and promoting health through organized community efforts. This definition emphasizes the importance of community-based interventions to improve public health outcomes such as sanitation, disease control, and health education. Public health aims to address the health needs of populations rather than just individuals, highlighting the collective approach to enhancing the well-being of communities.