The 1931 Statute of Westminster Conferred "Dominion Status" on Canada

The 1931 Statute of Westminster conferred "dominion status" on Canada, Australia, New Zealand, and South Africa wherein the dominions:

A) were allowed to levy tariffs against British goods.
B) became legally equal with each other and with Britain.
C) had to defer to the British Parliament in economic matters.
D) had full autonomy in policy making except in the case of foreign affairs.