In What Way Have Adlerians Been Able to Best Remain

In what way have Adlerians been able to best remain in line with contemporary/modern psychotherapy?

A) They have readily adopted integrative theoretical models.
B) Adlerians have the most comprehensive stand-alone training program amongst modern psychological schools.
C) Dynamic theoretical leaders have continued to emerge and promote the theory.
D) Adlerians have been able to unabatedly maintain allegiance to their single theory of personality and change.
E) By introducing the theory in the education system, Adlerians have infiltrated public thought and firmly established their single way of perceiving human behavior.