If a 10% increase in income causes a 20% increase in the quantity demanded for a good or service. It can be concluded that A. the good or service is a necessity. B. the price elasticity of the good or service is greater than one. C. the good or service is a luxury good. D. the income elasticity of the demand for the good or service is negative

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If a 10% increase in income causes a 20% increase in the quantity
demanded for a good or service. It can be concluded that

A. the good or service is a necessity.

B. the price elasticity of the good or service is greater than one.

C. the good or service is a luxury good.

D. the income elasticity of the demand for the good or service is
negative

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