During scene size-up on an unknown medical call, which clue would best indicate that the patient may be a veteran of the military?

On the CMS-1500 claim form, the abbreviation EMG indicates that:

A) an employer identifier number must be entered. B) it must be noted if emergency services were provided. C) it must be noted if preauthorization was obtained. D) it must be noted if the service is considered emerging or experimental.

A pediatrician's office saw a total of 60 patients in one day. Twenty of these patients were diagnosed with the flu. What fraction of the patients had the flu?

What will be an ideal response?