Easy , Io, in Greek mythology, daughter of Inachus (the river god of Argos) and the Oceanid Melia. Under the name of Callithyia, Io was regarded as the first priestess of Hera, the wife of Zeus. Zeus fell in love with her and, to protect her from the wrath of Hera, changed her into a white heifer.
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The correct answer is c. Hope i helped :)
Explanation:
is it a history question......
The chart shows that the railroad help expand the population of the cities
