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Multiplying any rational number by 1 leaves it unchanged, so 1 is the multiplicative:

AInterval
BIteration
CInequality
DIdentity
Answer & Solution
Correct answer: D. Identity
1. The number is returned untouched. 2. That is the same role zero plays for addition. 3. So 1 is the multiplicative identity. _Source: syllabus Mathematics Class VIII, Chapter 1, Rational Numbers._
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