Which one of the following is an example of reinforcement? [PTET-2014-II]

Kattda, can't you help Kirti with her answer

Which one of the following is an example of reinforcement?

1.	Which one of the following is an example of reinforcement? [PTET-2014-II]
A.	No Lata, the answer is not 45
B.	Kattda, can't you help Kirti with her answer
C.	Oh no, as usual, you are wrong
D.	Suniti, you have said rightly
Answer» E.