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1. [4 points] If a MATA32 practical question asked you to calculate the q value(s) for which the demand of a product is unit elastic, which of the following approach is correct? (A) Unit elastic means the demand function has an absolute value of 0. (B) Unit elasticity of a product implies the point elasticity of demand has an absolute value of 1. (C) Find the expression of point elasticity of demand first and then equate it to 1 to solve for q. (D) When the elasticity of demand is unit elastic that means the q value is approaching 0