I’m pretty sure it’s B, sorry if I’m wrong though, it’s been a while since I’ve learned this! ☻
Answer:
Causes of narcissistic personality disorder
childhood abuse or neglect. excessive parental pampering. unrealistic expectations from parents.
Breaking the body into systems is in most cases a lot easier for the students to understand instead of just doing it all at once
B makes the most sense to me so I would go with that