Why Might Japan Have Been Misled into Believing It Was

Why might Japan have been misled into believing it was following an expansionary monetary policy during the 1990s?

A) The M1 money supply was expanding at a rapid rate during the 1990s.
B) The general level of prices continued to rise in Japan throughout the 1990s.
C) When decision-makers expect inflationary conditions,nominal interest rates will be low,as they were in Japan during the 1990s.
D) Low interest rates are often indicative of expansionary monetary policy,but if deflation is expected,this will not be the case.