allerySet A being a subset of set B is described as a:
AReduction
BReflection
CRelation
DRotation
Answer & Solution
Correct answer: C. Relation
1. Subset links two sets in a fixed direction.
2. That directionality makes it a relation.
3. Relations such as set A is a subset of set B are met in mathematics.
4. So the answer is a relation.
_Source: syllabus Mathematics, Ch 2 'Relations and Functions'_
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