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Teacher and student is offered as an everyday:
ARotation
BReduction
CReflection
DRelation
Answer & Solution
Correct answer: D. Relation
1. Daily life supplies the first examples.
2. Brother and sister is given alongside.
3. Patterns such as teacher and student characterise relations.
4. So the answer is a relation.
_Source: NCERT Class XI Mathematics, Ch 2 'Relations and Functions'_
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