Governments, When They Observe That Their Currency Is Either Too

Governments, when they observe that their currency is either too strong or too weak, will:

A) intervene by buying their own currency if it is strengthening against other currencies.
B) intervene by buying their own currency if it is weakening against other currencies.
C) intervene by selling their own currency if it is weakening against other currencies.
D) sell their gold or foreign currency.