During world war ii, the last attempt by the germans to stop the allied advance on the western front took place

     during world war ii, the last attempt by the germans to stop the allied advance on the western front took place  at : the battle of the burge.  

This battle actually caught the allied forces on the western front by surprise and caused massive casualties on the side of allied forces. But Germany also experienced massive depletion in both military men and supplies which actually leave their last defense become vulnerable and eventually lead to their defeat.

d. migration of french settlers into english colonies

the answers are a b and d