On What Grounds,according to the Supreme Court,can the Use of Deadly

On what grounds,according to the Supreme Court,can the use of deadly force be justified?

A) When the "reasonableness of the moment" makes the use of deadly force a reasonable action.
B) When all other avenues of diffusing the situation have been exhausted.
C) If the suspect poses no immediate threat to the officer.
D) When the suspect poses no immediate threat to others.