Effective teacher behaviour – UGC NET Question

Statement A is true because constructive feedback is a hallmark of effective teaching and supports learner improvement. Statement C is also correct since effective teachers plan by considering learners' needs, interests and prior knowledge. Statement D is correct as encouraging questions and discussion promotes understanding and engagement. Statement B is wrong because sarcasm and ridicule create a negative classroom climate, damage learner self esteem and are inconsistent with effective teacher behaviour. Therefore the only wrong statement is B, so the correct combination is B only.

Option A:
Option A groups A and B as wrong statements, but statement A is actually a positive and accurate description of effective teaching. Treating both A and B as wrong ignores the important role of constructive feedback. Hence A and B only does not correctly represent the set of wrong statements.

Option B:
Option B correctly identifies B as the sole wrong statement because it describes a demeaning and harmful way of dealing with students. Since A, C and D reflect accepted characteristics of effective teaching, they should not be included among wrong statements. Therefore B only is the option that matches the requirement of the question.

Option C:
Option C combines B and C and assumes both are wrong, but C is a true statement that highlights thoughtful lesson planning based on learner characteristics. Mixing this true statement with the false statement B leads to an inaccurate classification. As a result, B and C only cannot be the correct answer.

Option D:
Option D treats both B and D as wrong statements, but D accurately captures the importance of encouraging questions and discussion in an effective classroom. Because it mislabels a positive behaviour as wrong while correctly including B, this option still does not provide the exact set of wrong statements required. Hence B and D only is not the right choice.