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OpenStudy (anonymous):

Which new form of communication put the Pony Express out of business after just 18 months of operation? A. telegraph B. carrier pigeons C. telephone D. signal flags

OpenStudy (anonymous):

@pooja195

OpenStudy (anonymous):

A. http://en.wikipedia.org/wiki/Pony_Express

OpenStudy (king.void.):

right#^

OpenStudy (anonymous):

Did this help @Ariel2

OpenStudy (anonymous):

yes

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