Which situation always warrants calling 911 a. you are alone with injured person b you are not sure whether the condition is serious c. the hospital is mote than 10 miles away. d a bone could be broken

B. you are not sure whether the condition is serious

Explanation:

If you move them you can cause more injury. And you aren't sure if they need to be taken to a hospital so it is better to get help right away and them help you on seen if needed or let you know that it isn't that serious and tell you what needs to be done.

the correct answer is d