If Unskilled Labour Is Relatively Plentiful and Cheap in Many

If unskilled labour is relatively plentiful and cheap in many foreign countries,then as Canada expands its trade with these foreign countries,what happens to the domestic demand for unskilled and skilled labour

A) The domestic demand for unskilled labour will rise and demand for skilled labour will fall.
B) The domestic demand for skilled labour will rise and demand for unskilled labour will fall.
C) The domestic demand for both skilled and unskilled labour will rise proportionately.
D) The domestic demand for both skilled and unskilled labour will be unaffected, assuming there are no barriers to free trade.