Under Fixed Exchange Rates, Domestic Asset Transactions by the Central

Under fixed exchange rates, domestic asset transactions by the central bank

A) can be used to alter the level of foreign reserves but not to affect the state of employment and output.
B) cannot be used to alter the level of foreign reserves but only to affect the state of employment and output.
C) can be used to alter the level of foreign reserves and to affect the state of employment and output.
D) can be used to alter the domestic money supply and the level of foreign reserves.
E) can raise output to full-employment level.