Which of the Following Options Is the Best ILLUSTRATIVE Example

Which of the following options is the best ILLUSTRATIVE example for the claim that:
In some cases, when parents are sure their teenage children have made a bad decision, they have an obligation to step in and stop their children from acting on that decision.

A) Imagine that parents know that their teenage son is trying to join a gang. They find out that he has been assigned, as part of his initiation, to murder a member of a rival gang. If it is possible for them to step in and prevent him from leaving the house to do the murder, they should do that.
B) Imagine a teenager has headed off to college. Their parents find out that they intend to declare a major in philosophy, even though the parents had suggested a pre-med major. If the parents are able to step in and stop their child from declaring a philosophy major, they should do that.
C) This isn't true. Parents should support their children in their life choices, even when they disagree.
D) This is true. If a teenager decides to do something dangerous, parents should put a stop to that.