"<span>C to ensure that U.S. businesses could operate in China" is the correct answer for </span>why the <span>the United States announced the Open Door Policy</span>. This was essential for trade.
The answer is letter C.) <span>a newspaper editorial about families who were displaced.
A newspaper editorial refers to the opinion of a leading staff or writer of a newspaper. This would share data on how families were affected by the </span><span>Great Chicago Fire, through the lens of an educated staff. The other sources presented only speak a small percentage of the families/people affected by the fire.
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Yes if they didn’t observe and study real plants and animals then all the things we know now wouldn’t be true