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Which of the following matters may account for changes in...

Which of the following matters may account for changes in demand?
I - changes in consumer preferences
II - changes in real income
III - changes in distribution of incomes
IV - changes in levels of taxation

A.

I, II

B.

II, III

C.

I, III, IV

D.

I, II, III, IV

Correct answer is D

Consumer preferences (Taste), Income, taxation, advertisement, population, weather conditions, price of other commodities are shift. Factors that affect or change or shift the demand curve.