If the Purchasing Power of the Canadian Dollar Is Less

If the purchasing power of the Canadian dollar is less than the purchasing power of the British pound, purchasing power parity predicts that the exchange rate will

A) increase if the exchange rate is greater than 1 pound per Canadian dollar.
B) decrease if the exchange rate is less than 1 pound per Canadian dollar.
C) be equal to the relative purchasing power across the currencies in the long run.
D) be determined by relative interest rates in the long run.
E) All of the above are correct.