A Man Killed a Stranger in a Fit of Rage

Multiple Choice

A man killed a stranger in a fit of rage when he heard voices telling him that the stranger was about to destroy the Earth and must be stopped. The killer is likely to be sent to a mental institution because:

A) no crime was committed.
B) he was mentally unstable at the time of the crime.
C) a person who commits such a crime must be insane.
D) he was mentally unstable at the time of the trial and unable to defend himself.