A Student Tells the School Nurse, "My Friend Threatened to Take

A student tells the school nurse, "My friend threatened to take an overdose of pills." The nurse talks to the friend who verbalized the suicidal threat.What is the most critical question for the nurse to ask?

A) "Why do you want to kill yourself?"
B) "Do you have access to medications?"
C) "Have you been taking drugs and alcohol?"
D) "Did something happen with your parents?"