Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to call 911 [title] Make sure the situation requires 911 assistance. [step] 911 is meant to help in situations involving medical emergencies, fires, or crimes in progress. If someone is hurt, injured, or facing another emergency, don't waste time, but do think about whether or not you need this type of assistance.

Ending1: [substeps] If the situation requires the assistance of emergency medical services, these should be contacted as soon as possible. If they are unavailable at the moment, have medical assistance at hands. Ending2: Times when it makes sense to call 911 include (but are not limited to): ' [substeps] A fire has started and is out of control. A burglary, assault, or other crime is in progress. Ending3: Further, above all else, support all persons and put others first in case of medical problems. [substeps] To call 911, you need to file a complaint with the local police station. Ending4: [substeps] If you are caring for someone in distress, call emergency services right away or stop at your local emergency room. If the person is ill, your first priority should be to rescue him or her.

Answer format: ending1/ending2/ending3/ending4