The statement that best explains why tension grew between European leaders over colonialism in Africa is: "Some were angered because other nations took over their colonies." Option D is correct.
Between the 1870s and 1900, Africa coped to European imperialist aggression, diplomatic pressures, military invasions, and eventual conquest and colonization.
The European imperialist push into Africa was motivated by three main factors, economic, political, and social.
The best and most correct answer among the choices provided by your question is the second choice or letter B: <span>set quotes on production and reduce waste.
</span>The War Industries Board<span> (WIB) was a United States government agency established on July 28, 1917, during World </span>War<span> I, to coordinate the purchase of </span>war<span> supplies. The organization encouraged companies to use mass-production techniques to increase efficiency and urged them to eliminate waste by standardizing products.</span>
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