What Is the Exchange Rate Between the Dollar and the British

Multiple Choice

What is the exchange rate between the dollar and the British pound if a pair of American jeans costs 50 dollars in New York and 100 Pounds in London?

A) 1.5 dollars per British pound
B) 0.5 dollars per British pound
C) 2.5 dollars per British pound
D) 3.5 dollars per British pound
E) 2 dollars per British pound