Please indicate whether the statement is true or false, then defend your answer. Give explantion.

Please indicate whether the statement is true or false, then defend your answer. Give explantion.

a/ A higher rate of return in a nation's economy, all other things being equal, will cause that nation's currency to appreciate.

b/ If $1 US trades for $1.30 Canadian, then that is a sign that the dollar is weak and that the US economy is not doing well.

c/ A central bank's countercyclical monetary policy will be made more effective when the nation's currency is allowed to freely float than when the currency is pegged.