Which Boy Is Most Likely to Commit an Act of Lethal

Which boy is most likely to commit an act of lethal violence?

A) Mitchell, who has mental health problems, is the most likely person.
B) Miguel, who has easy access to guns, is the most likely person.
C) Martin, who has recently dropped out of school, is the most likely person.
D) Researchers have not identified a reliable mechanism for identifying which students will commit a lethal crime.