The Chicago Central EMS System covers areas north of which street to Fullerton?

• A. 119th Street
• B. 130th Street
• C. 99th Street
• D. 43rd Street

Answer: (D)

The key idea is how Chicago divides EMS regions by city streets. The Chicago Central EMS System is defined with a southern boundary at 43rd Street and a northern boundary at Fullerton Avenue, so its area includes everything north of 43rd Street up to Fullerton. That makes 43rd Street the correct boundary because it marks the southern edge of this system’s coverage. The other streets listed—119th, 130th, and 99th—are far south of that line and correspond to different boundary zones, not the Central EMS System.