In general, the labor reform movement spread to other areas of life because people became aware of how powerful these movements could be in changing society.
<span>The answer is D) Muslim defenders adopted Christian military practices in order to defeat their foes.
F</span>ollowing the period of the Crusades, <span>Muslim defenders adopted Christian military practices in order to defeat their foes.</span>
<span>One of the underlying causes of slavery, and its expansion in North America, was the nature of the capitalist economic system itself.</span>