The correct answer is B) Europeans wanted more territory to prepare for the threat of war.
The sentence that best describes why European powers competed for new colonies in Africa and Asia in the early 1900s is "Europeans wanted more territory to prepare for the threat of war."
What European superpowers wanted was to exploit the many raw materials and natural resources in Africa and Asia. Countries such as Great Britain or France wanted to be well prepared in case they had to go to war and were in need of supplies. Those supplies could be found in Africa and Asia, as well as some people that could be of help.
