Which of the following describe limitations of the purchasing-power-parity theory?Check all that apply.

A.) The theory does not consider the impact of international capital movements.

B.) The theory ignores the fact that sellers will seek out the highest possible prices and buyers the lowest ones.

C.) The theory does not appear to apply well to nontradable goods and personal services like haircuts.

D.) The theory suffers from the choice of an appropriate price index used in price calculations.