Let P Denote the Price of Goods in the United $p ^ { w }$

Let P denote the price of goods in the United States, $p ^ { w }$ denote the price of goods in the foreign country, and E the exchange rate, measured as the number of units of foreign currency that can be purchased with one dollar. According to the law of one price:

A) $P = E P ^ { w }$
B) $P ^ { W } = E P$
C) $E = P / P ^ { w }$
D) $P ^ { w } = E + P$
E) $p ^ { w } = E - P$