if the 2019 inflation rate is britain is 2 percent, and the inflation rate in the us is 4% then the theory of purchasing power parity predicts that, during 2019 the value of the british pound in terms of us dollars will

a. rise by 10 percent

b. rise by 2 percent

c. fall by 10 percent

d.fall by 2 percent

d. do none of the above