The answer is D. I hope this helped :)
Soldiers from colonies around the world fought in the war. Colonies became a source of manpower and raw materials. European colonies were not passive, while there was war in Europe, they were actively involved in the fight.
1 he was a skillful politician
<span>C.Coal-powered blast furnaces</span>
Nobility is a social class in aristocracy, normally ranked immediately under royalty, that possesses more acknowledged privileges and higher social status than most other classes in a society and with membership thereof typically being hereditary. The privileges associated with nobility may constitute substantial advantages over or relative to non-nobles, or may be largely honorary, and vary by country and era. The Medieval chivalric motto "noblesse oblige", meaning literally "nobility obligates", explains that privileges carry a lifelong obligation of duty to uphold various social responsibilities of, e.g., honorable behavior, customary service, or leadership roles or positions, that lives on by a familial or kinship bond.