Answer:
C. Michelle is frightened by the anger and violence she sees in Erkan.
Explanation:
It can't be A because we aren't given any info about her teacher.
It can't be B because it never mentions or implies any shyness, only avoidance of Erkan's behaviors.
D is probable, but C is more likely because D implies she isn't good at her job, which isn't highlighted by the passage.
Her avoidance of Erkan implies fear.
