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An exceptional demand curve can result from

...

An exceptional demand curve can result from

A.

Increase in price of raw materials

B.

Increase in the size of the population

C.

Expectation of future price increase

D.

Change in taste of consumer

Correct answer is C

Exceptional or Abnormal demand curve does not abide to the law of demand and it give reverse to the law of demand, which states that " At higher price, more quantity will be demanded and vice-versa" .Therefore, rise as a result of future expectation rise in price, war, consumer ignorance etc are the causes of abnornal demand curve.