It was positive, because the West had been critical of the war in Afghanistan and could only be satisfied once it was over.
Hope this helped :)
The Zollverein was an economic union of 30 states. The correct option among all the options given in the question is option "b". Zollverein is actually a coalition of German states whose main agenda was to manage the tariffs and all the economic policies within the German territories. Later on it expanded to other European countries as well.
