Mina's Teacher Expected Her to Be a Troublemaker Like Her

Mina's teacher expected her to be a troublemaker like her older brother and treated her with suspicion. Despite this, Mina did very well in the class. Which piece of research on self-fulfilling prophecies is relevant

A) What looks like a self-fulfilling prophecy may be an accurate assessment by the teacher.
B) It is unclear whether self-fulfilling prophecies tend to do more harm than good.
C) Self-fulfilling prophecies can be especially influential on students who belong to groups that are already stigmatized. 
D) Self-fulfilling prophecies do occur in the classroom, but they are only one of many influences on student achievement.