While on a Plane,the Flight Attendant Suddenly Says,"We Need a Doctor

While on a plane,the flight attendant suddenly says,"We need a doctor or someone with medical training! Is there anyone onboard?" Which of Darley and Latané's steps toward intervening on someone else's behalf does this demonstrate?

A) Consider what form of assistance is needed.
B) Interpret the event as an emergency.
C) Feel personal responsibility for acting.
D) Implement action.