Answer: open new markets.
Explanation:
The greatest priority of western railroad development as illustrated above was to open new markets.
Connecting the coasts made exportation easier to the Eastern markets. The development of the railroad also brought about new economic opportunities and new territories were also easily accessible.
the answer is 2 strides because 5+2 =7
both sides sufferd plus inocent people died due to the empire
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(A) it appoints federal judges