Statements A, B and D are correct, whereas C is incorrect. A is true because studentsโ perceptions of clarity and engagement provide valuable feedback for teachers. B is true since studying who speaks, for how long and in what patterns helps refine interaction strategies. D is true as peers can observe communication behaviours that the teacher may not notice. C is false because focusing only on exam scores ignores key process indicators of effective teaching, including communication quality.
Option A:
Option A groups A and B only and omits D, overlooking the role of peer observation in providing structured feedback on communication. Without D, the evaluation framework is narrower than it should be. Therefore A and B only cannot be accepted.
Option B:
Option B includes B and D only and leaves out A, ignoring the direct voice of students regarding clarity and effectiveness. Since A is also a correct statement, B and D only does not capture all relevant evidence sources. Hence this option is incomplete.
Option C:
Option C brings together A and D only but omits B, missing the analytical dimension of classroom interaction patterns. Because B is correct, A and D only does not present the full set of accurate statements. Thus it is not valid.
Option D:
Option D combines A, B and D and excludes C, which wrongly discounts communication evidence in teaching evaluation. This option recognises student feedback, interaction analysis and peer observation as complementary sources. As it contains all and only the correct statements, A, B and D only is the right answer.
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