Answer: Symbolic interactionism
Explanation:
Symbolic interactionism is the concept that displays relationship persisting between people of the society,Through one-to one mechanism of observation, pattern, trend and strength of interaction taking place between people is assessed and studied.
According to the question,symbolic interactionism perspective would be used for studying situation and relationship of Kara with school staff and students to understand the label given to her.Her relationship with people around her will define relationship pattern.