Medicare conditions of participation for hospitals require that a complete history and physical examination be performed no more than days prior to admission or within hours after admission.

30 days and 24 hours

The answers are actually quite similar, and the question is not easy!

We can immediately reject option D: as posting pictures does not directly save lives.
 We can also reject answer C as posting pictures does not have to be connected to false information.

Option B can be rejected because it's not aboput situation awareness if it's after the event.

So the correct answer is A!