Which of the following are said to be style-related competencies of an effective teacher ?

A. Organized demeanour which means being orderly, clear and in control

B. Literacy which implies general knowledge as well as good at reading and writing

C. Self-efficacy which refers to a person's self-perceived capacity to perform a task

D. Flexibility which means being sensitive and lenient

E. Evaluating and providing feedback

Choose the correct answer from the option given below: