Answer:
Explanation: Yet, advocates of the beneficial effects of war on mental health were soon ... a much more complex image of the psychological disorders of soldiers in the First ... they are crucial sources for actual practices and attitudes in the treatment institutions. ... was soon to be made aware of the problem of 'nervous and mental shock'.
<span>C. the American army</span>
If you are talking about the Second Industrial Revolution, then the person who had a monopoly in the steel industry was Andrew Carnegie.
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C. They banned Chinese people from serving in government .