Widgets are known to have inelastic demand when their price increases from $2 to $4. What must be true of the change in quantity demanded over this price range? A) It increased by exactly 100 percent.
B) It decreased by exactly 100 percent.
C) It decreased by less than 100 percent.
D) It increased by more than 100 percent.
E) It decreased by an indeterminate amount.

The correct answer is E. It decreased by an indeterminate amount.

Explanation:

Economics is not an absolute science like physics or chemistry, because due to the human factor there are phenomena that cannot be expressed in specific units. Demand is characterized by a decreasing step function, in which the demand is constant over the whole area of ​​the demand function determination. Inelastic are goods that, if abandoned, would significantly impair an individual's well-being, such as certain medicines, fuel, electricity, and so on, so there is no relation between the demand and the price.