Which Is Not a Red Flag That May Signal Suspicious

Which is not a red flag that may signal suspicious activity in hospitals, hospices, and nursing homes?

A) The family was at the patient's bedside at the time of death.
B) Fellow employees often report allegations to investigators, not management.
C) There are no eyewitness to the crime.
D) The weapon of choice is usually a sudden death chemical readily available on the ward and often considered non-detectable or not checked at autopsy.