____ defines the amount of change constituted by the substitution

____ defines the amount of change constituted by the substitution of one parameter by another parameter.

A. Rigidity

B. Elasticity

C. Replaceable

D. Replicable

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The correct option is B. Elasticity

Explanation: Elasticity defines the amount of change constituted by the substitution of one parameter by another parameter. A value of 1 indicates perfect substitution. Constant elasticity by substitution does not require independent input value and is suitable for multi objective analysis.