Explanation : Classroom communication is centred around
a planned unit of instruction in a stipulated
period of time which does not leave any
scope for opportunism whether for the teacher
or the taught. So, opportunistic meaning is
not possible. Classroom communication
involves lecturing or interactive teaching-
learning ideally in a noise-free environment.
So, it does not involve noise-level meaning.
Students decode or understand the lesson,
though in varying degrees; so, it is not non-
coded meaning, either. However, since the
lesson is time-bound, there is little scope
for reflective thinking; hence, the level of
meaning is surfacial only.