In which statement(s) is "supply" used correctly? (I) "An increase in the price of flour will increase the supply of flour." (II) "As the cost of producing flour rises, the supply of flour will tend to fall."

If people expect the Fed to adopt a(n) ________ for several years, the long-run real interest rate will remain ________

A) contractionary fiscal policy; high B) expansionary fiscal policy; low C) expansionary monetary policy; low D) contractionary monetary policy; low

Since 1950, expansions in the United States have become ________, while recessions have become ________

A) shorter; shorter B) shorter; longer C) longer; longer D) longer; shorter