Which disease now affects as many as 4.8 million children in the United States?

• A. Asthma
• B. Diabetes
• C. Leukemia
• D. Influenza

Answer: (A)

This item is about how common certain diseases are among children and why asthma stands out. Asthma is a chronic inflammatory condition of the airways that often begins in childhood and causes recurring symptoms such as wheezing, coughing, chest tightness, and shortness of breath. Because it is a long‑standing, ongoing condition that can affect many kids year after year, it affects a large number of children—around 4.8 million in the United States. That makes asthma the most widespread among the options listed when talking about how many children are affected.

The other diseases listed are either less common in children or occur in different ways. Diabetes in kids is much less prevalent than asthma, leukemia is relatively rare, and influenza is a seasonal infection rather than a chronic, ongoing pediatric condition. Understanding the high prevalence of asthma highlights why effective management, prevention, and action plans are so important for school-age children.