The "Bystander's Three Options" Case Is Intended to Make a Point

The "Bystander's Three Options" case is intended to make a point about the original trolley problem. What is it supposed to show?

A) It is not morally acceptable to kill one person to save five unless one is prepared to sacrifice oneself first.
B) It is better to sacrifice oneself than to sacrifice another person.
C) Good intentions don't always mean that your actions are good.
D) Turning the trolley to save the five people is morally permissible.