Answer Happy

Which of the following is true?
Group of answer choices
a- Imports tend to fall whenever a nation's currency appreciates
because foreign products become more expensive to domestic
consumers.
b- A country that experiences higher real interest rates than
other countries would expect its currency to depreciate.
c- If U.S. consumers increase their demand for foreign products
and foreign travel, the U.S. dollar would tend to depreciate as
more dollars are supplied to foreign exchange markets.
d- An influx of tourists and advertising business for the
Olympics would tend to lead to a decrease in the host nation's
currency value, boosting ticket sales.