APEX says A
<span>Because it would cause conflict between the British visitors and the Chinese residents</span>
<span>When writing an essay like this, it is important to make connections between the historical issues at hand and the current events that are shaped by these issues. </span>
Secondary sources analyze and interprets primary sources. <span>Also, they may have pictures, quotes or graphics of </span>primary sources in them. T<span>extbooks and magazine articles could go under secondary sources.
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Hope this helps!