Which one is defined as "any form of teaching and learning in which the teacher and learner and not in the same place at the same time"...? Mcqs

Which one is defined as "any form of teaching and learning in which the teacher and learner and not in the same place at the same time"...?

(A) Group discussion

(B) Distance learning

(C) Classroom lecture

(D) None of these

Source: This question is taken from the Pedagogy