The map shows germany and its surrounding area. which is the best title for the map? germany's location in europe german territorial losses after world war i german territorial gains after world war i reasons why germany lost the war

You didn't attach a map, but based on your choices I'm going to guess it's a map like the one I've attached below.

The correct title for such a map would be:

According to the terms of the Treaty of Versailles, which brought World War I to a close, Germany had to give up large portions of its territory, as shown in the map (attached below).  Germany also was forced to give up colonial territories.   The League of Nations (formed after World War I) created a system for governing former German and Ottoman territories, called "the mandate system."  There were mandate territories for former German territories in Africa and Asia, as well for former Ottoman territories in the Middle East.  

So Germany lost territory both in Europe and abroad as a result of World War I.

b. ensure mutual protection from communism.

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