From the Perspective of Social Science, a Person Who Has

From the perspective of social science, a person who has been cursed or 'hexed' can die from the curse (hex) only when:

A) This is a trick question because nobody dies from a curse or hex.
B) poisons are secretly fed to the hexed individuals.
C) the curse or hex was uttered during a full moon.
D) he or she knows that the curse will bring death.
E) instrumental ties are more common than expressive ones.