What best description fits the theory of Behaviourists?

i) learning process, constructing of meaning, independent learning

ii) responsible learning, self-motivated,

iii) Reward or reinforcement, punishing or rewarding, Observable behaviours

iv) None of the above

A. Only (iv) is correct.
B. Only (i) and (iii) are correct.
C. Only (iii) is correct.
D. Only (ii) and (iii) are correct.
E. Only (i) and (ii) are correct.