If an old lady falls over by herself, what should a station officer do?

A、A station officer should stay away and call the police.;

B、A station officer should come up and ask whether the old lady gets hurt or not.;

C、A station officer should call 112 for doctor’s help when he or she confirms that the old lady gets hurt.;

D、A station officer should help the old lady get up when he or she confirms that the old lady is alright.