Between the summer of 2005 and April 2008, the Chinese yuan ___ against the U.S. dollar

All other factors held constant, when McDonald's raises the price of its Quarter Pounder by 50 cents,

A) there is likely to be a decrease in the quantity of Taco Bell's Chalupas demanded, assuming the Quarter Pounder and Chalupas are substitutes. B) there is likely to be an increase in demand for Taco Bell's Chalupas, assuming the Quarter Pounder and Chalupas are substitutes. C) there is likely to be a decrease in demand for Taco Bell's Chalupas, assuming the Quarter Pounder and Chalupas are substitutes. D) there is likely to be an increase in demand for McDonald's Quarter Pounder, assuming the Quarter Pounder and Chalupas are substitutes.

When the Fed wishes to reduce the economy's money supply, it

a. lowers the discount rate b. lowers the legal reserve requirement c. reduces the margin requirement d. sells some of its government securities e. prints more money