3220. If a child is a back bencher and unable to watch the blackboard clearly. As a result he stands, sees and sits repeatedly. What inference will you draw regarding the case?

A. The child is of short height as compared to his classmates
B. The blackboard is under shining effect of light
C. The child has a defective-vision
D. Both (a) and ( c )
✅ The correct answer is option D.
The child is of short height as compared to his classmates and the child has a defective-vision.

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