Question

A German action(s) which increased tension in Europe before the war was:

1 -- its isolation of France
2 -- the race for colonies
3 -- a proposed railroad to Constantinople
4 -- both 1 and 2
5 -- both 1 and 3
6 -- both 2 and 3
7 -- 1, 2, and 3

Answer 1

7 -- 1, 2, and 3

Step-by-step explanation:

Around the times of the First World War, the Triple Alliance was formed by Otto von Bismarck to isolate France, whose citizens strongly resisted the German advance. Besides, Russia and England feared Kaiser Wilhelm's scheme to build a railroad to Constantinople because it would obstruct British commerce with eastern countries and India.