Why Was the Rivalry Between Great Britain and Germany Particularly

Why was the rivalry between Great Britain and Germany particularly intense in the decades before the eruption of World War I?

A) For centuries these two countries had conflicts over African territories.
B) Animosity over treaty violations after the Napoleonic wars had poisoned relations between the two countries.
C) They competed for control over India.
D) The German Kaiser Wilhelm II took a personal interest in kindling this rivalry.
E) The German government claimed that British spies had infiltrated their military.