please show the calculation method of No, 63

The mean real exchange rate change against the U.S. dollar was _ and the standard deviation of such changes was _ for MOST countries as reported in the research by Dimson et. al. (2002). A) large; larger B) large; smaller C) small; larger D) small; smaller One-year interest rates are currently 2.50% in the United States and 3.70% in Great Britain. The current spot rate between the pound and dollar is $1.9000/. What is the expected spot rate in one year if the international Fisher effect holds? A) $1.9000/B) $1.9222/C) $1.8772/D) $1.8500/