Which nation is considered part of northern and western europe? austria, norway, greece or portugal

Norway is often considered part of Northern Europe because Norway is a Scandinavian country in the North of the European Continent. Norway is also considered part of Western Europe because of its geography and also because of its economic development to a degree as it is not considered part of Eastern Europe like Poland or former Soviet states. 

Well, a and b together would be negative. b alone would also be negative.