Which of the following set of statements best describes the nature and objectives of teaching? Indicate your answer by selecting from the code.

(a) Teaching and learning are integrally related.

(b) There is no difference between teaching and training.

(c) Concern of all teaching is to ensure some kind of transformation in students.

(d) All good teaching is formal in nature.

(e) A teacher is a senior person.

(f) Teaching is a social act whereas learning is a personal act.